In What Way Does Learned Taste Aversion Seem to Contradict

In what way does learned taste aversion seem to contradict the basic principles of classical conditioning?

A) In learned taste aversion,the CS and the UCR are separated by only a brief interval.
B) Learned taste aversion can occur after only a single CS-UCR pairing.
C) Learned taste aversion takes longer to develop than do most classical conditioning processes.
D) Learned taste aversion is subject to biologically based constraints while,classical conditioning is not.