Step-by-step explanation:
From what I understand, the hormones shown on the graph were estrogen and progesterone, from what I can deduce, the growth of the follicle are not affected directly by those hormones hence the answer would be section B and C
The development of the follicle is brought about by the production of follicle stimulating hormone(FSH) and then after ovulation in the luteal phase, the development is brought about by the luteinizing hormone(LH) so that is how I eliminated section A.
Section C shows the lining of the uterus, progesterone directly affects the build up of the lining.
Although I'm still a bit unsure of my answer simply before estrogen is responsible in a way for making the body produce the FSH needed to develop the follicle, but it's how the question stated "directly" is making me uncertain