Question

Which of these occurs in the first trimester of human pregnancy?

A. The fetus accumulates fat under its skin.

B. The fetus's lungs become fully developed.

C. The fetus is able to move its limbs.

D. The fetus becomes medically viable.

Answer 1

Answer:

i think its probably A

Explanation:

the first trimester is when the fetus enters a stage of rapid development. forming most organs, facial features, skeletal tissue, and limbs. So its either A or B. But i dont think the lungs are fully developed yet so i would choose A. hope this helped