Agonists________,whereas Antagonists ________

Multiple Choice

Agonists________,whereas antagonists ________.

A) increase the availability of neurotransmitters; increase the effectiveness of neurotransmitters
B) block receptor sites; increase the effectiveness of neurotransmitters.
C) increase the availability of neurotransmitters; block receptor sites.
D) speed up the transmission of neural impulses; mimic the action of neurotransmitters
E) speed up the transmission of neural impulses; increase the effectiveness of neurotransmitters