Question

the vas deferens connects:
a epididymis to bladder.
b epididymis to urethra.
c testes to penis.
d testes to urethra.

Explanation:

The vas deferens is part of the male reproductive system. Sperm mature in the epididymis. The vas deferens transports sperm from the epididymis. Eventually, the sperm (via the vas deferens) reaches the urethra (during ejaculation). It does not directly connect to the bladder (A is wrong). It starts at the epididymis, not the testes (C and D are wrong as testes - epididymis - vas deferens - urethra is the pathway, not testes - vas deferens directly).

Answer:

B. epididymis to urethra.