The bond between carbon atom (1) and carbon atom (2) in compound $N \equiv C_{(1)} -CH_{(2)}H \equiv CH_2$ involves the hybrid as

Question

$(a)\;SP^2\;and\;SP^2 \\ (b)\;SP^3\;and\;SP \\ (c)\;SP\;and\;SP^2 \\ (d)\;SP\;and\;SP$