In allene $\;(C_{3}H_{4})\;$ , the type(s) of hybridization of the carbon atom is (are) :

Question

$(a)\;sp\;and\;sp^{3} \qquad(b)\;sp^{2}\;and\;sp\qquad(c)\;only\;sp^{2}\qquad(d)\;sp^{2}\;and\;sp^{3}$