I think the right answer is that it's "false"
Answer:
<em>It is a constant when the light is traveling in a vacuum.</em>
Explanation:
A is incorrect, ovulation happens around day 14. B. is correct, during the luteal phase LH from the anterior pituitory gland stimulates the corpus lutem to secrete progesterone. C. is incorrect, the follicular phase is when FSH is released from the anterior pituitary. D is incorrect, the luteum is stimulated in the luteal phase.