Hydrocarbons

Identify product [A], [B] and [C] in the following reaction sequence. CH3-C CH [H2]Pd/C [A] [(ii) Zn, H2O](i) O3 [B] + [C]

1. [A]: CH3-CH=CH2, [B]: CH3CHO, [C]: CH3CH2OH
2. [A]: CH3-CH=CH2, [B]: CH3CHO, [C]: HCHO
3. [A]: CH3CH2CH3, [B]: CH3CHO, [C]: HCHO
4. [A]: CH2=CH2, [B]: H3C- O \|C-CH3, [C]: HCHO