Allene,C₃H₄ (Shown Below),is One Component of Gas Used for High-Temperature

Allene,C₃H₄ (shown below) ,is one component of gas used for high-temperature welding. According to the valence bond model,which is a proper description of the bonding on the central carbon atom in allene?

A) It shares four π bonds,two with each carbon atom on either side.
B) It shares four σ bonds,two with each carbon atom on either side.
C) It shares one σ bond and one π bond with each carbon atom on either side.
D) It shares two σ bonds with the carbon atom on the left,and two π bonds with the carbon atom on the right.
E) It shares two σ bonds with the carbon atom on the right,and two π bonds with the carbon atom on the left.