Class 11 NEET Biology Structural Organisation in Animals

Correct answer is option (2), because in both sexes of cockroach, 10‌th ‌ segment bears a pair of jointed filamentous structures called anal cerci.
Options (1), (3) and (4) are incorrect because 5‌th ‌,8‌th ‌ and 9‌th ‌ segments do not bear such structures. In adult cockroaches only 10‌th ‌ segments are present in abdomen. 11‌th ‌ abdominal segment is absent.