Use reasoning to lead to the answer of the following question:
5,9,20,32,52,__\nOptions:\n(A) 79\n(B) 85\n(C) 81\n(D) 82\n(E) 83

(B)
(9+5) +6 = 20\n(16+9) +7 = 32\n(28+16)+8 = 52\n(48+28)+9 = 85.

So, the final answer is (B)