Answer:
A
Step-by-step explanation:
There isn't much there that you might consider poetic.
I don't think you need to consider B. It's more a statement of fact. He couldn't reflect on anything. He had no time. I would say the same thing about C. It is more or less a statement of fact.
Your only real choice is A. He is saying something unusual about the nature of the smell -- it's richness.