Which of the following is not an assumption of stage theories?

a.
stages are cultural.
b.
stages are genetically predisposed.
c.
each stage corresponds to a specific age.
d.
each person goes through the stages in the same order.

A. Stages are cultural

Explanation:

the correct answer is  a

the aorta is the large artery leaving the heart branches into smaller arteries, which eventually branch into capillaries.the arteries carry oxygen and nutrients away from your heart, to your body's tissues. the capillaries are small, thin blood vessels that connect the arteries and the veins. the statement that arteries carry oxygen-rich blood to capillaries is true. veins on the other hand are blood vessels that take oxygen-poor blood back to the heart.

the correct answer is d