MHT CET Chemistry question

Which of the following represents Isobutyl alcohol?

• (A)
• (B)\mathrm{CH_3{-}CH(CH_3){-}CH_2OH}Correct
• (C)\mathrm{CH_3{-}CH_2{-}CH(CH_3){-}OH}
• (D)\mathrm{CH_3{-}CH(OH){-}CH_2{-}CH_3}