Correct Answer - Option 4 : 17
Given family consists of
(i) Man (1) + Wife (1) = 1 + 1 = 2
(ii) Three sons (3) + Their wives (3) = 3 + 3 = 6
(iii) 3 children in each son's family = 3 × 3 = 9
Total members in the family = 2 + 6 + 9
= 17
So, there are 17 members in the family.
Hence, the correct answer is "17".