Which of the following statement is correct regarding Female reproductive system of earthworm ?

A. It consists of two large ovaries, lying laterally in the 6th 7th abdominal segments.

B. Each ovary is formed of a group of five ovarian tubules or ovarioles, containing a chain of developing ova.

C. A pair of spermatheca is present in the 5th segment which opens into the genital chamber.

D. None of the above