How are male condoms and diaphragms different?

diaphragms encourage ovulation, while male condoms prevent sperm formation.

male condoms need to be purchased with a prescription, but diaphragms do not.

male condoms keep sperm from entering the other person’s body, but diaphragms do not.

diaphragms can be used for only one act of intercourse, while male condoms can be used for multiple acts.

The answer is C.

The reasoning behind this is because male condoms are only used once and then it's garbage, so cross out D.

Male condoms do not prevent sperm formation, for which sperm formation is performed inside the male's testies, so cross out A.

You can buy male condoms in many places, and none of them need prescriptions, so cross out B.

Condoms are used to protect the female from becoming pregnant by trapping the sperm cells inside the condom, so C is the correct answer. For diaphragms, I do not know a whole lot about them, but since we're already this far, C is the correct answer.