Morgan Was Born with a Muscle Problem That Interfered with Her

Multiple Choice

Morgan was born with a muscle problem that interfered with her ability to focus both of her eyes on the same object.However,the problem was not detected until third grade.Morgan's vision has greatly improved with physical therapy and glasses but it is likely that her depth perception has been adversely affected for life.This is an example of

A) cohorts.
B) developmental domains.
C) critical periods of development.
D) imprinting.