At an intersection of two two-way streets, a steady red arrow pointing left means

• A. You may turn left after stopping.
• B. You must stop and you cannot go in the direction of the arrow.
• C. You may turn left without stopping.
• D. You may go straight or right.

Answer: (B)

A steady red left-turn arrow means that direction is not allowed to move. This is a protected left-turn signal, so when the arrow is red you must come to a complete stop and you cannot turn left in that moment. You only may proceed left when the signal changes to green (or you have a standard left-turn green). In the meantime, you can still go straight or right if those movements have their own allowed signals, but the left turn itself is off-limits until the arrow turns green.