JEE Main 2021 Chemistry question

Choose the correct statement regarding the formation of carbocations A and B given :- "A" or \mathrm{CH_3-CH_2-\overset{+}{C}H-CH_3\ Br^-} "B"

• (A)Carbocation B is more stable and formed relatively at faster rateCorrect
• (B)Carbocation A is more stable and formed relatively at slow rate
• (C)Carbocation B is more stable and formed relatively at slow rate
• (D)Carbocation A is more stable and formed relatively at faster rate