Tonsils reach their maximum size by: (A) 1 year, (B) 3 years, (C) 5 years, (D) 12 years
Answer is D. Tonsils are most active from 4 to 10 years of age. Involution begins after pubey resulting in a decrease of B-cell production and a relative increase in the ratio of T to B cells. (Ref: Diseases of Ear, Nose and Throat, PL Dhingra; 7th edition ,pg no. 292)