In the female rabbit which structure is homologous to the penis of the male.
A) Cervix
B) Vagina
C) Uterus
D) Clitoris

Hint: Homologous organs are organs that are similar in function but different in structure and are present in different organisms. For example, arms of man and wings of birds. The homologous organs help in establishing the evolutionary link between the organisms. The organ which is homologous to the male penis in female is the organ responsible for the orgasm.

Complete answer:
The rabbit is a mammal and gives birth to the young one. The male and female reproductive system vary greatly in structure and function. The male reproductive system in rabbit comprises of the penis, seminal vesicles, testes and several accessory glands. The female system comprises of vagina, ovary, cervix, uterus, oviduct, and accessory glands like the clitoris.

Let us discuss the function of the penis. The penis is the main copulatory organ that discharges the sperm into the female vagina. It is also the organ of orgasm. In the female, the clitoris is the organ of the orgasm. It is also known as the female penis. They are different in structure and develops as an outgrowth in the embryo known as the genital tubercle. This tubercle either develops as penis or clitoris as a response to the hormones.
Cervix- The female rabbit has two cervices that open into a single vagina. It has a rich supply of blood vessels and is capable of dilation.
Vagina- The vagina of the rabbit is a very long muscular duct that receives the sperms from the male rabbit.
Uterus- It is the organ where the fetus develops and maturate till parturition. The male does not have an organ that can house a fetus.

Hence, we can conclude that the correct answer is D.

Note: There are homologous reproductive organs in humans. For example, the clitoral hood is homologous to the foreskin in the penis. The testes are homologous to the ovary as they both produce gametes. These organs differ in their anatomical structure but are similar in functions.