Which of the Following Is/are True About Sexual Reproduction

Which of the following is/are true about sexual reproduction?

A) At the cellular level is the opposite of reproduction since it involves two cells fusing to become one.
B) It requires the development of organs such as the uterus, which are of no immediate survival advantage to the individual but are advantageous to the species.
C) It regularly produces a wider array of adaptations to the external environment in a shorter period of time.
D) It regularly produces a wider array of adaptations to the internal environment (disease agents, parasites) in a shorter period of time.
E) All of the choices are true.