Annelle Is a Professional "Perfume Smeller" for a Major Cosmetics

Annelle is a professional "perfume smeller" for a major cosmetics firm.She claims that "the nose" is a gift: Some people are just born with more sensitive olfactory mechanisms than others are.How does Annelle view the relative importance of top-down and bottom-up processes in olfaction? Is Annelle's view of an innate olfactory talent supported by empirical research?

A) Annelle believes that olfaction is primarily a bottom-up process. Her view is supported by research showing that humans have difficulty learning to discriminate among odours and that the piriform cortex is not plastic.
B) Annelle believes that olfaction is primarily a bottom-up process. Her view is discredited by research showing that humans can learn to discriminate among odours and that the piriform cortex is highly plastic.
C) Annelle believes that olfaction is primarily a top-down process. Her view is discredited by research showing that humans have difficulty learning to discriminate among odours and that the piriform cortex is not plastic.
D) Annelle believes that olfaction is primarily a top-down process. Her view is supported by research showing that humans can learn to discriminate among odours and that the piriform cortex is highly plastic.