Compound X `(C_7H_14O_4)` on ozonolysis gives (Y) and (Z).(Z) is the aldehyde which gives only oxime with `NH_2-OH` On treatment with `I_2/(NaOH)`.(Y) gives yellow solid `CHI_3` alongwith compound given below.
When (X) is treated with `D_2//Ni`.It gives two optically active compound (V) and (W).
Compound (Y) can give ....... types of oximers on treatment with `CH_2-OH`
A. 2
B. 16
C. 8
D. 7