Match the following structures of cockroach in column I with their location provided in column II.
Column IColumn IIa.Testes in males(i) 6th abdominal segmentb.Mushroom gland(ii) 2nd - 6th abdominal segmentc.Spermatheca(iii)6th-7th abdominal segmentd.Ovaries in females(iv) 4th-6th abdominal segment
This is part of the reproductive system of cockroach.