Fred went to the doctor because his body was not producing semen. Which part of Fred's body was most likely functioning incorrectly to cause this problem.

Semen is made mostly of fluids produced by reproductive glands, including the seminal vesicles and prostate gland. The scrotum holds the testes, the urinary bladder stores urine, and the penis delivers semen but does not produce it. So the most likely problem is with the glands.

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