Answer:
C.- It is a functional layer undergo cyclic changes in response to blood levels of ovarian hormone
Step-by-step explanation:
Stratum functionalis is the thick superficial layer which is sloughed off during the time of menstruation and further grows during the each mensuration cycle. Therefore, it is a temporary tissue which has an "unfinished" appearance. It is the layer which undergoes various cyclic changes in response to the ovarian hormones. It is not quite as the tidily organized as mucosal tissues in most of the other organs. It shed during menses.