MHT CET Chemistry question

An alcohol (A) with molecular formula on oxidation forms compound (B) . The compound (B) gives iodoform test, but does not reduce ammoniacal silver nitrate, (B) on treatment with amalgamated zinc and HCl gives compound (C) . Identify A, B, C.

• (A)\mathrm{CH_{3}CH_{2}CH_{2}CH_{2}OH}, \mathrm{CH_{3}CH_{2}CH_{2}CHO}, \mathrm{CH_{3}CH_{2}CH_{2}CH_{3}}
• (B), , \mathrm{CH_{3}CH_{2}CH_{2}CH_{3}}Correct
• (C), , \mathrm{CH_{3}CH_{2}CH_{2}CH_{3}}
• (D)\mathrm{CH_{3}CH_{2}CH_{2}CH_{2}OH}, \mathrm{CH_{3}CH_{2}CH_{2}CHO},