【单选题】

According to the passage, which of the following can be inferred about the role of the trigeminal nerve in the experience of odors
A．The trigeminal nerve plays a much more significant role in the experience of an irritating odor than does actual olfactory sensation itself.

B．The trigeminal nerve produces a negative experience of an irritating odor independently of the emotional context in which the odor was initially perceived.
C．The trigeminal nerve tends to cause an experience of discomfort in the cases of odors that are initially paired with negative emotional experiences.
D．The functioning of the trigeminal nerve tends to be largely conditioned according to the pairing process simulated in the experiment.
E．(E) The trigeminal nerve generally does not play a role in the experiencing of odors that create innate reactions.