Given below are two statements: 

Assertion (A):  All the carbon atoms in  H2C = C = CH2  are sp2-hybridised.
Reason (R): In this molecule, all the carbon atoms are attached to each other by double bonds.

 

1. Both (A) and (R) are True and (R) is the correct explanation of (A).
2. Both (A) and (R) are True but (R) is not the correct explanation of (A).
3. (A) is True but (R) is False.
4. (A) is False but (R) is True.