Two Vehicles with Equal Magnitudes of Momentum Traveling at Right

Two vehicles with equal magnitudes of momentum traveling at right angles to each other undergo an inelastic collision. The magnitude of momentum for the combined wreck is

A) the same as the magnitude of momentum of either car before collision.
B) less than the magnitude of momentum of either car before collision.
C) greater than the magnitude of momentum of either car before collision.
D) none of the above