Compound X `(C_(5)H_(10)O)` is a chiral alcohol. It is catalytically hydrogenated to an achiral alcohol Y `(C_(5)H_(12)O)` and oxidized by activated `MnO_(2)` to an achiral carbonyl compound `Z (C_(5)H_(8)O)`. Compound X is
A. 1-penten-3-ol
B. 1-penten-2-ol
C. 3-methyl-2-buten-1-ol
D. 2-methyl-2-butene-1-ol