In the following question, three sentences are given, out of which one or more may contain a grammatical or contextual error. Identify the sentence(s) that is/are grammatically and contextually CORRECT.
A. The regulator’s clarification, though delayed, helped dispel uncertainty among investors who had been waiting for guidance on the new disclosure norms.
B. The committee arrived at a consensus after several members had resigned in protest against the very proposal that was eventually approved.
C. Having examined the complaints in detail, the revised guidelines were issued by the authority to prevent similar lapses in future.