The nurse is administering folic acid to a client and correctly identifies the medication is used to treat which of the following conditions?

A. Heart failure is not treated with folic acid; it is typically managed with medications like ACE inhibitors, beta-blockers, and diuretics. B. Folic acid is used to treat megaloblastic anemia, which is often caused by folate deficiency. C. Angina pectoris is treated with medications such as nitrates, beta-blockers, and calcium channel blockers. D. Chronic kidney disease is managed with medications targeting blood pressure and other specific interventions, not folic acid.