Caffeine Is an Antagonist and Therefore It Is an Example

Multiple Choice

Caffeine is an antagonist and therefore it is an example of a drug that

A) inhibits the action of a neurotransmitter
B) increases the action of a neurotransmitter
C) makes it more difficult for neurotransmitters to be deactivated
D) mimics the action of a neurotransmitter by binding with and stimulating postsynaptic receptor sites