You are en route to an emergency call when you approach a slow-moving vehicle on a two-way road. you can see oncoming traffic in the other lane. the driver has his windows up and does not realize that you are behind him. you should:

select one:
a. remain at a safe distance until it is safe to pass.
b. quickly pass the vehicle on the left side.
c. pass the driver on the right-hand shoulder.
d. use your public address system to alert the driver.

D. remain at a safe distance until it is safe to pass.

Explanation:

As a driver you always have to make sure that the other driver can see you and you can also see them , otherwise if the other driver doesn't see you , you can never predict what they would do next because they can't see you. You may try to move to the other lane and he may swerve in that exactly direction because she or he can't see you. It is important to stay visible and pass only when the other driver is aware of your intention.

a is the answer because it just is