What happens when 2-butyne reacts with `H_(2)` in presence of Nickle bride or lindlar's catalyst (Pd/`CaCO_(3)-PbO`)

Options

A. `{:(CH_3-C-H),(" "||),(CH_3-C-H):}`
B. `{:(CH_3-C-H),(" "||),(" "H-C-CH_3):}`
C. `CH_3-CH_2-CH_2-CH_3`
D. `{:(CH_2=CH),(" "|),(" "CH=CH_2):}`

Answer

A