Biomolecules: JEE Main 2026 Chemistry question

In the given pentapeptide, find out an essential amino acid (Y) and the sequence present in the pentapeptide: $\mathrm{H_2N{-}CH(CH(OH)CH_3){-}CO{-}NH{-}CH(CH_2OH){-}CO{-}NH{-}CH(CH_2COOH){-}CO{-}NH{-}CH_2{-}CO{-}NH{-}CH(CH_3){-}COOH}$ (structure as drawn). Choose the correct answer from the options given below: