Identify the part (A–E) that contains a grammatical error in the sentence below. If there is no error, choose option E (No error). Sentence (split into parts): A) The majority of the B) computer professionals recommends C) that effective measures D) should be taken against software piracy.

Introduction:
This question checks subject–verb agreement with a quantifying expression "the majority of + plural noun". The verb should agree with the noun after "of" when that noun is plural and refers to individuals.

Given Data / Assumptions:

• Headed by quantifier: "The majority of the …".
• Post-modifier NP: "computer professionals" (plural, countable).
• Verb currently: "recommends" (third-person singular).

Concept / Approach:
When "majority of + plural NP" means "most people in that group", agreement is plural: "recommend". Singular agreement is used when "the majority" is treated as a unit (e.g., statistics). Given the human agents "professionals" who recommend actions, plural agreement is appropriate here.

Step-by-Step Solution:
1) Identify notional agreement: plural individuals.2) Change verb to plural: "recommend".3) Keep the that-clause: "that effective measures should be taken…".4) Correct version: "The majority of the computer professionals recommend that effective measures should be taken against software piracy."

Verification / Alternative check:
Even more concise: "…recommend taking effective measures…" but that changes structure; grammar is not in error.

Why Other Options Are Wrong:
A: Quantifier phrase is fine.C–D: Subordinate clause is grammatical and idiomatic.

Common Pitfalls:
Treating "majority" as automatically singular regardless of the following NP. Context dictates agreement.

Final Answer:
B (Write: "computer professionals recommend")