I would say the passage is mostly about smell receptors
Answer: The answer is B
Explanation: you always want to write down your key topic and what key aspects are in that topic to compare contrast and summarize.
“Every one suspects himself of at least one of the cardinal virtues and this is mine: I am one of the few honest people that I have ever known.”
"It was one of those rare smiles with a quality of eternal reassurance in it”
Sorry that’s what I took off of my project from last year
What do you mean? I can answer if you rephrase the question.