Answer:
D.both produce sex cells. is a correct answer.
Step-by-step explanation:
Testes and ovaries are similar because they both produce sex cells and both are reproductive organs.
Testes is a male reproductive organ.
Testes function is to produce sperm, called a male reproductive sex cell.
ovaries is a female reproductive organ.
ovariesOvaries function is to produce ovum, called a female reproductive sex cell.
Thus both testes and ovaries are similar as they both produce sex cells.