The hybrid orbital that characterizes and differentiates alkynes from other ... ...

The hybrid orbital that characterizes and differentiates alkynes from other simple hydrocarbons like alkanes and alkenes, is that alkynes have hybrid orbitals which have:  
(A) 75% p character and 25% s character.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in 17. Alkynes