The Blitzkrieg Was

The Blitzkrieg was

A) a steady, methodical armed attack that was aimed at achieving an eventual weakening of an enemy and, finally, surrender.
B) a coordinated sudden attack by land and air forces.
C) never able to achieve its specific military objectives.
D) a series of naval attacks that were aimed at blockading enemy ports.
E) the use of massed artillery fire and poison gas against enemy fortifications.