of
about
at
to
Answer is Right!
Answer is Wrong!
The correct answer is D. to.
The word “accustomed” means “habituated by practice or experience.” In this sentence, the speaker is saying that the man is used to chewing Tulsi leaves, even when he is giving a lecture. This means that he has done it so often that it is now a habit for him.
The other options are not as accurate. Option A, “of,” would mean that the man is a connoisseur of Tulsi leaves. This is not what the speaker is saying. Option B, “about,” would mean that the man is thinking about Tulsi leaves. This is also not what the speaker is saying. Option C, “at,” would mean that the man is good at chewing Tulsi leaves. This is also not what the speaker is saying.
Therefore, the correct answer is D. to.