Let {a,) be a sequence of positive real number= satisfying n+l 81 n 1, a = 1. an+1 a 3 .+ an then all the terms of the sequence lie in 3 b. [0, 1] a 2 d. [1, 31

Let {a,) be a sequence of positive real number= satisfying n+l 81 n 1, a = 1. an+1 A 3 .+ an Then all the terms of the sequence lie in 3 B. [0, 1] A 2 D. [1, 31 C. [1, 2]1