The correct answer is b. formation of sperm.
Explanation:
The testes are located in the scrotum because sperm production requires a lower temperature than the normal body temperature. The scrotum provides this cooler environment, allowing for the optimal development of sperm.
Why other options are incorrect:
a. process of mating:
While the scrotum plays a role in sperm production, which is essential for mating, the primary function of the scrotum is temperature regulation for sperm formation. Mating involves the delivery of sperm to the female reproductive tract, not the storage or production of sperm.
c. easy transfer of gametes:
The transfer of sperm occurs through the penis and other reproductive structures, not the scrotum. The scrotum’s role is specifically in creating sperm, not facilitating their transfer.
d. all the above:
Since only option b is correct, this option is incorrect. The scrotum’s primary function is related to sperm formation, not the process of mating or the easy transfer of gametes.