What happens to your body as two fetuses grows bigger and bigger by each passing month of pregnancy and what happens when you give i will give

Well of course the belly grows bigger and as the weeks begins to pass then the uterus is preparing to expand for the delivery. Hormones relax the tendons and ligaments to the bones can spread to make room for the delivery, Contractions start before the birth. The baby most of the time doesn't come on the due date and moms go into labor as their water breaks and powerful contractions start. Yay birth! 

Ithink the answer is d.