During a __________,organisms are particularly susceptible to certain kinds of stimuli in their environments,but the absence of those stimuli does not always produce irreversible consequences.

A) sensitive period
B) continuous change period
C) critical period
D) cohort

Critical Period

A specific time during an organism's development during which the presence or absence of certain experiences has a profound and irreversible effect on the development of specific skills or knowledge.

Cohort

A group of people born at around the same time in the same place.