Answer:
Option D
Step-by-step explanation:
Fertilized egg must attach to the wall of the uterus through placenta in order to get food and essential nutrients and in order to excrete waste. Hence, option D is correct
Option B is incorrect because by 30th week, the fetus do not grow completely
Option A is incorrect as the Fetus grows the most in the second trimester
Option C is also incorrect as organs do not grow gradually from starting. By the third semester the organs develop.