Which of the Following Is the Best Example of Operant

Multiple Choice

Which of the following is the best example of operant conditioning?

A) A man gets nauseated when he smells the same kind of food that once caused him food poisoning.
B) A man asks for a raise because, in the past, his requests were successful.
C) A woman has been frightened by thunderstorms all her life.
D) A child watches a friend steal from a store, so he thinks he might steal sometime in the future.