Final answer:
To ensure other drivers see you and your truck at night, use your turn signals for every turn or lane change so your intentions are always clear.
Step-by-step explanation:
To ensure other drivers see you and your truck at night, it is important to use your headlights appropriately. Option B is the correct choice: use your turn signals for every turn or lane change so your intentions are always clear. This helps other drivers anticipate your movements and reduces the risk of accidents. Option A is incorrect as keeping your high beams on at all times can blind and distract other drivers. Option C is also incorrect because decreasing your following distance does not indicate your presence to other drivers behind you. Option D is not necessary as turning the dome light on to illuminate your cab does not help other drivers see you on the road.