Based on the options given, the possible answer for this query is "a. “Oh, sir, she smiled . . . / . . . but who passed without / Much the same smile?”. . . Thank you for your question. Please don't hesitate to ask in Brainly your queries.
The correct sentence is:
Every day there are more comments, and they are hard to ignore. The antecedent of the pronoun "they" is "comments".
A cautious and optimistic stance should be adopted while trying to understand the situation in a positive manner.
