In the following question, one part of the sentence may have an error. Find out which part of the sentence has an error and select the option corresponding to it. If the sentence is free from error, select "No error". Sentence: "Science and technology and (A) / their fallouts do not (B) / complete human culture (C) / No error (D)".

Introduction / Context:
This error-spotting question deals with subject–verb agreement and correct usage of countable versus uncountable nouns in English. The sentence discusses science, technology and their consequences for human culture. Your task is to identify the segment with incorrect usage, focusing in particular on the phrase "their fallouts". This is a good test of whether you recognise which nouns are normally uncountable in standard English.

Given Data / Assumptions:

• The sentence is divided into parts: (A) Science and technology and / (B) their fallouts do not / (C) complete human culture / (D) No error.
• "Science and technology" are treated together as a compound subject.
• The verb phrase is "do not complete".
• The noun "fallout" is being used in part (B).

Concept / Approach:
In English, the word "fallout" is typically an uncountable noun when it refers to the negative consequences or bad results of an action, such as "the political fallout" or "the fallout of war". It is not usually used in the plural as "fallouts" when we talk generally about consequences. The rest of the sentence is structurally sound: "Science and technology and their fallout do not complete human culture" is meaningful and grammatically correct. Therefore, the error lies in the pluralisation in part (B).

Step-by-Step Solution:
Step 1: Read the full sentence for meaning: it tells us that science, technology and their consequences are not enough to complete human culture. Step 2: Check part (A): "Science and technology and". This simply links "science and technology" with something else; there is no error here. Step 3: Check part (B): "their fallouts do not". The noun "fallout" is usually uncountable when referring to effects, for example "the economic fallout of the decision". The plural "fallouts" is unnatural in this sense. Step 4: Check part (C): "complete human culture". This correctly indicates that these things do not make human culture complete or whole. Step 5: Since we have identified that "fallouts" is incorrect and should be "fallout", the error must be in part (B). Step 6: The corrected sentence should read: "Science and technology and their fallout do not complete human culture."

Verification / Alternative check:
Consider examples from common usage: "the environmental fallout of industrialisation", "the social fallout from the policy". In all these cases, "fallout" is used in the singular as a mass noun. You rarely, if ever, see "fallouts" to refer to multiple sets of consequences in formal English. The verb "do not complete" correctly agrees with the compound subject "Science and technology and their fallout", which is treated as a plural overall because of the combined entities. This confirms that the only problem lies in the unnecessary pluralisation in part (B).

Why Other Options Are Wrong:

• A: "Science and technology and" correctly strings the items together; there is no grammatical problem.
• C: "complete human culture" is correctly phrased and expresses the idea that culture involves more than just science and technology.
• D (No error): Cannot be correct because we have already found a definite error in part (B).

Common Pitfalls:
Students may focus only on verbs and tenses in error-spotting questions and overlook subtle noun usage like countable versus uncountable forms. Another pitfall is relying too much on literal translation from the mother tongue, where similar concepts might be treated as countable. To avoid such errors, pay special attention to abstract nouns like "information", "advice", "equipment", and "fallout", which are generally uncountable in English and rarely take plural forms.

Final Answer:
The error is in part (B), where "fallouts" should be corrected to "fallout".