Which of These Is the Best Example of a Critical

Multiple Choice

Which of these is the best example of a critical period?

A) A young hawk that does not acquire hunting skills rapidly enough will likely starve to death by the end of its first year.
B) A juvenile songbird will learn to produce an abnormal song unless it is exposed to adult songs between 6 and 12 weeks of age.
C) Deprivation of social contact for at least 2 weeks, at any point in the life of a rodent, will lead to subsequent aggression and inappropriate attachment after the isolation period ends.
D) In a rodent, exposure to calcium and vitamin D during development are needed for optimal cognitive function.
E) During prenatal development, or juvenile development prior to adolescence, treatment of a female bird with androgen hormones will tend to produce male-like courtship behaviors as an adult.