The four optically active structural isomers of C4H8O3 (A to D) are provided and evolve C02 with aq. NaHC03. Which of the following is the structure of the isomer that reacts with LiAlH4 to give an achiral product?
1
CH₃—CH(OH)—CH₂—COOH
2
CH₃—CH(OH)—COOH
3
CH₃—CH₂—CH(OH)—COOH
4
CH₃—CH(OCH₃)—COOH