Answer:
d. Pull over as far as possible to the right and stop until the fire truck passes you
Step-by-step explanation:
You are driving on a two lane roadway and you encounter a fire truck coming toward you with sirens and emergency lights on, you should pull over as far as possible to the right and stop until the fire truck passes you.
Cars in the US drives on the left, when a fire truck is approaching you with the sirens on, it indicates there is an emergency. The right action is move as far as possible to the right and stop so as to create space for the fire truck on emergency to pass.