Recently,people Have Started Laughter Groups

Multiple Choice

Recently,people have started laughter groups.These groups get together on a regular basis to laugh for a period of time.Even though the laughter occurs without humor,group members
Show improved mental and physical health.This happens because

A) the act of laughing is a cue to positive affect.
B) laughter has physiological effects that are similar to exercise.
C) we base our moods on our actions.
D) laughter activates our hippocampus.