Answer:
The correct option is D.
Step-by-step explanation:
The corpus luteum refers to the structure that is formed in an ovary after an ovum has been discharged; this structure degenerates if pregnancy does not occur. The formation and degeneration of corpus luteum occurs in a cycle. Many hormones are involved in this cycle, but the hormone that is initially responsible for the maintenance of the corpus luteum is LEUTEINIZING HORMONE (LH) not FSH. If pregnancy occur, then hCG hormone will support the work of LH and the two of them will work together.