In allene, `C_3H_4`, three C atoms are joined by

Note: In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices. Assertion : In allene (C_3 H_4) all carbon atoms are sp^2 hybridised. Reason : All the three carbon atoms are joined by double bond.

In alkene structure, three carbon atoms are joined by

In allene (C_(3)H_(4)), the type (s) of the carbon atom (s) is (are) :

In allene (C_(3)H_(4)), the type (s) of the carbon atom (s) is (are) :