English grammar – Spot the error (choose the part with an error or “No error”). Sentence: The recent study has / indicated that there is / perceptible change in / the attitudes of the people.

Introduction / Context:
The test here is article usage before a singular countable noun. “Change” in this sense is countable when referring to a specific instance, so it needs an article: “a perceptible change.”

Given Data / Assumptions:

• Clause indicates existence: “there is … change.”
• “Change” is singular and countable in this meaning.
• Segment C lacks the necessary indefinite article.

Concept / Approach:
Before singular countable nouns, use “a/an” unless the noun is made specific by a determiner. Therefore, the correct phrasing is “there is a perceptible change in …”.

Step-by-Step Solution:

Verification / Alternative check:

Why Other Options Are Wrong:

Common Pitfalls:

Final Answer:
perceptible change in