 
 <translate> The least number of complete years in which a sum of money put out at 20% C.I. will be more than doubled is?
Options:
(A) 6
(B) 4
(C) 5
(D) 3
(E) 1 Let's think first. Stream of consciousness: <ibo> Nke kacha nta ọnụ ọgụgụ nke zuru ezu afọ na nke a ego e nyere na 20% C.I. ga-karịa okpukpu abụọ bụ? Nhọrọ: (A) 6 (B) 4 (C) 5 (D) 3 (E) 1 Ka anyị buru ụzọ chee echiche. Mmiri nke ịmara: 