The correct option is D Four pairs of spermathecae are located in 6th - 9th segments
A single female genital pore is present in the mid-ventral line of 14th segment.
A pair of male genital pores are present on the ventro-lateral sides of the 18th segment.
In a mature worm, segments 14-16 are covered by a prominent dark band of glandular tissue called clitellum.
Spermathecae is a repository of sperm (after mating) . Four pairs (one on each segment) are located in 6th-9th segments.