JEE Main 2021 Chemistry question

For the given reaction : A () B (). B reacts with Hydroxyl amine but does not give Tollen's test. Identify A and B

• (A)1,1-Dichlorobutane and 2-ButanoneCorrect
• (B)2,2-Dichlorobutane and Butanal
• (C)1,1-Dichlorobutane and Butanal
• (D)2,2-Dichlorobutane and 2-butan-one