Identify product [A],[B] and [C] in the following reaction sequence.
$$\mathrm{CH_3 - C \equiv CH \xrightarrow[\mathrm{H_2}]{\mathrm{Pd/C}} [A] \xrightarrow[\mathrm{(ii)\ Zn,\ H_2O}]{\mathrm{(i)\ O_3}} [B] + [C]}$$

A

B

C

D