Brad Bumbler, a bartender at the Bubble-up Bar, blundered over a barrel of Budweiser beer and broke a bone.Brad files a claim for Workers Compensation.What must Brad prove to bring in the bucks?

A)That his employer (Bob Biggbux) was negligent.

B)That the injury arose during the course of his employment.

C)That he was not guilty of contributory negligence.

D)All of the aBove.