Answer:
Piggybacking
Explanation:
I believe the answer is: Script
In psychology, script would determine the set of behaviours that a person tend to do when facing a certain situation. The formation of script usually influenced by several factors, including knowledge, previous experience, relationship with other people, or even personalities.
A) Most people reach this stage shortly after birth.
B) Most people reach this stage after passing through puberty.
C) Most people reach this stage during the 'midlife crisis.'
D) Most people do not reach this stage.