Late One Winter Night While on Patrol,Oscar,a Deputy Sheriff,observes an Automobile

Late one winter night while on patrol,Oscar,a deputy sheriff,observes an automobile parked along the side of a busy highway.Oscar stops to investigate and finds Ray slumped over the steering wheel asleep with the car's ignition turned off.Oscar awakens Ray and observes that Ray's speech is slurred,his eyes bloodshot,and he smells of the odor of alcohol.Oscar would be legally justified to arrest Ray for:

A) public intoxication.
B) driving while intoxicated.
C) being asleep at the wheel.
D) obstructing a highway.