The correct option is A Propene
a) CH2sp2=CHsp2−CH3sp3
Propene has both sp2 and sp3 hybridized carbons.
b) CHsp≡CHsp−CH3sp3
Propyne has sp and sp3 hybridized carbons.
c) CH3sp3−CH2sp3−CH3sp3
Propane has only sp3 hybridized carbons,
d) CH2sp2=Csp=CH2sp2
Allene (Propa-1,2-diene) has only sp and sp2 hybridized carbons.