Multi-choice problem: Continue writing the next sentence in this paragraph:

How to increase progesterone levels
Talk with your gynecologist about increasing progesterone.
Women that have recurrent or unexplained miscarriages often respond to treatment with progesterone, and are able to maintain the next pregnancy.
Prevent early miscarriage.

(A). Avoid birth control pills that leave her infertility sitting dormant. If you suspect that your child might gain progesterone, make an appointment with your doctor and ask them about hormones or mood levels that might make your child more prone to thinning.
(B). If you're planning to have a baby with a young mother, agree with your doctor before starting treatment. Instead of surgery, if you are having progesterone for other causes, talk with a specialist before starting treatment.
(C). Your doctor can help you figure out what to do, including what drugs to take and what hormone replacement therapy might be best for you. Take precautions if you do not have chlamydia, ovaries and uterus.
(D). Progesterone deficiency is not the cause of every miscarriage, but scientific research indicates that adequate amounts of progesterone are needed to support the early stages of pregnancy. Progesterone levels naturally increase during each menstrual cycle once ovulation has occurred.
(D).