In the diagram of human male reproductive system given below:

In the diagram of human male reproductive system given below:
(a) Label parts A and B.
(b) Name the hormone produced by organ ‘X’. What is the role of this hormone in human male ?
© Mention the name of substances that are transported by tubes
(i) C and (ii) D

(a) A - seminal vesicle, B-prostate gland
(b) Testosterone Role - controls gamete formation / secondary sex organs / accessory glands.
© C - sperms, D - sperms / semen and urine.