Which of the Following Is True About Estrogen

Multiple Choice

Which of the following is true about estrogen?

A) Estrogen causes the endometrium to thicken.
B) Estrogen causes the endometrium to become vascular and glandular.
C) As the estrogen level in the blood rises, it exerts negative feedback control over the secretion of FSH so that the follicular phase comes to an end.
D) Estrogen causes a surge in LH production.
E) All of the answer choices are true.