I believe the answer is B, correct me if i'm wrong :)
Huxley is commenting that most people in society prefer to live in "happy ignorance" as opposed to having knowledge. The stars, or truth, are "depressing."
This is because that many find the truth upsetting and would prefer to live in the dark. Huxley is saying that for many, ignorance is bliss.
Answer:
I have no idea you smell like poppy diaper but