A nurse is assessing a client who is requesting a combined oral contraceptive (COC). Which of the following findings should indicate to the nurse that the client has a contraindication to COC use?

A. Moderate alcohol intake is not a contraindication to COC use. B. Breastfeeding in the first 6 weeks postpartum is a contraindication to combined oral contraceptives because estrogen can reduce milk supply and increase the risk of thrombosis. C. High body weight is not an absolute contraindication, though efficacy may be reduced. D. Age 25 alone is not a contraindication to COCs.