In the hydrocarbon
The state of hybridization of carbon 1, 3, and 5 are in the following sequence
-
sp2, sp, sp3
-
sp, sp3, sp2
-
sp, sp2, sp3
-
sp3, sp2, sp
B.
sp, sp3, sp2

Hence the state of hybridization of carbon 1,3 and 5 are sp, sp3, sp2 respectively.