Which of the following statements is correct regarding primary sex organs?

The correct option is A They are involved in gametogenesis.
The primary sex organs are responsible for the formation of gametes (gametogenesis) and sex hormones. They are called gonads.
The organs that aid in the transfer of the gametes are called secondary sex organs. Apart form the primary sex organs, all other organs of the reproductive system are called secondary or accessory reproductive organs. Some of them such as penis in males and vagina in females are involved in sexual intercourse.