A nurse is reinforcing teaching with a client about various contraceptive methods. Which of the following statements should the nurse include in the teaching?

"Combined estrogen-progestin contraceptive pills cause longer periods.”.

"You will need to receive a medroxyprogesterone acetate injection once per month.”.

"You will need to have your diaphragm replaced every 4 years.”.

"Oral contraceptives decrease the risk for endometrial cancer.”.