单选题 It can be inferred from the passage that "most scientists" assume which of the following concerning "innate reactions" (line 15)?

• (A) Innate reactions to smells do not include the stimulation of the trigeminal nerve per say.
• (B) Only smells which have not previously been paired with emotional experiences trigger innate reaction.
• (C) Irritating smells are the only ones which are considered likely to produce innate, or unlearned, reactions.
• (D) Most subjects can distinguish between pure odor sensation and trigeminal nerve sensation enough to determine which reactions are innate.
• (E) Innate reactions are produced when the trigeminal nerve catalyzes an emotional experience.