Find out the incrrect pair w.r.t. cockroach-
A. A pair of testis - `4^(th) - 6^(th)` abdominal segmental
B. Mushroom gland `6(th) - 7^(th)` abdominal segmental
C. Titillator - Left phallomere
D. Innermost layer of spermatophore - Utriculi brevivoures
