In the surgical method of birth control available for males, the structures A in the reproductive system are cut and ligated (tied up) at both ends. This prevents the reproductive cells B from coming out from the organs C where they are made in the male body. Since B cannot come out from the male body, they cannot fuse with cell D in the body of a female and hence pregnancy is prevented.

(a) What are structures A ?

(b) What are cells B?

(c) Name the organs C.

(d) What is cell D ?

(e) What is the name of this surgical procedure for birth control available to males?