Optically active isomer (A) of `(C_(5)H_(9)Cl)` on treatment with one mole of `H_(2)` gives an optically inactive compound (B) compound (A) will be :

Optically active isomer (A) of (C_5H_9 Cl) on treatment with one mole of H2 gives an optically inactive compound (B) compound (A) will be :

(W) and (X) are optically active isomers of C_(5) H_(9) Cl (W) on treatment with 1 mol of H_(2) is converted to an optically inactive compound (Y) , but (X) gives an optically actgive compound (Z) under the same conditions. Give the sturcture of (Y) and the configurations of (W),(X) and (Z) in Fischer projections.