You are driving down a two-lane road at 45mph. the oncoming vehicle's right wheels drop off the pavement. the most likely occurence is

a. the vehicle will enter your lane.
b. the vehicle will continue on the shoulder of the road.
c. the vehicle will spin out and hit a tree.
d. the vehicle will return smoothly back onto the road.

correct  option is A. The vehicle will enter your lane

Explanation:

when we are driving our vehicle on 2 lane road  

we are at 45 mph  

when we see that oncoming vehicle right wheel off the pavement  

it means that vehicle will try to come toward our lane because right wheel drop off pavement and enter in our lane  

so here correct option is A. The vehicle will enter your lane

uhh idk for sure but i think it makes it difficult to pump the oil through the oil rigs