Question

what does circumcision involve?
cutting pubic hair
removing the penis
extending the penis
removing the foreskin

Explanation:

Circumcision is a surgical procedure that specifically involves the removal of the foreskin (prepuce) from the penis. The other options: cutting pubic hair is unrelated, removing the penis is a different and extreme procedure (penectomy), and extending the penis is a different type of procedure (not circumcision). So the correct option related to circumcision is removing the foreskin.

Answer:

Removing the foreskin