Among the following compounds which have more than one type of hybridization for carbon atom :<br> 1. $CH_3.CH_2.CH_2.CH_3$ <br> 2.$CH_3.CH= CH.CH_3$ <br>3. $CH_2 = CH - CH = CH_2$ <br> 4.$H-C = C-H$

Question

( A ) 3 and 4
( B ) 3
( C ) 2 and 3
( D ) 2