Final answer:
To safely move through an intersection, observe in the sequence left-right-left to account for vehicles from both directions, performing an extra check toward the closest oncoming lane.
Step-by-step explanation:
When approaching an intersection and preparing to move, it's important for safety to follow a specific sequence of observation. You should look left, then right, and then left again before pulling out. This method ensures that you are aware of vehicles coming from both directions, with an additional check to the left where vehicles would be closest to you if you're in a right-hand drive country, or to the right if in a left-hand drive country. Therefore, the correct sequence is left-right-left.