Answer:
b. functional zone of the endometrium is restored.
Explanation:
Proliferative phase -
This is the very second phase of uterine cycle , in which due to the estrogen , the lining of the uterus grows , or proliferate .
In this phase , the ovarian follicles secretes estrogen and estradiol .
The function of estrogen is to start the formation of the new layer in the uterus called the endometrium .
And this is how , the endometrium is restored in Proliferative phase .
