Driving on the left side of a multi-lane highway is legal when you are:

Driving on the left side of a multi-lane highway is legal when you are avoiding an obstruction. This situation requires a driver to make a judgment call to ensure safety. If there is an obstacle in your lane, moving to the left side to avoid it is permitted as long as it can be done safely and without impeding the flow of traffic.

While turning left and passing another vehicle are also valid actions that can require driving on the left side, they are specific scenarios under which it is acceptable to be in that lane. The option you selected focuses on the more general and necessary action of avoiding an obstruction, which is a primary reason for needing to move out of your current lane for safety reasons.

However, it’s important to recognize that turning left and passing another vehicle, while legal actions allowing for the use of the left lane, do not apply in every circumstance, such as when there’s no obstruction present. Thus, the most broadly applicable context is avoiding an obstruction.