Which organ is responsible for producing sperm?

The testicles are the organs responsible for producing sperm. They are a part of the male reproductive system and are located in the scrotum, which allows them to maintain a temperature that is slightly lower than the body's core temperature, a critical factor for the production of healthy sperm. In addition to sperm production, the testicles also produce testosterone, the hormone that plays a key role in male sexual development and reproductive function.

The other options refer to structures with different functions. The ovaries are involved in the production of eggs and hormones in females. The prostate plays a role in producing fluid that nourishes and protects sperm, but it does not produce sperm itself. The epididymis is a tube where sperm mature and are stored after being created in the testicles, but it is not responsible for their production. Therefore, the most accurate choice for the organ that produces sperm is the testicles.