What must the driver of a car do to merge into traffic?

What must the driver of a car do to merge into traffic?
A)Only signal the maneuver, because others must yield.
B)Always follow the instructions of another person.
C)Make sure they can do so without danger to other users.Correct
To merge into traffic, the driver must ensure that they can do so without creating danger to other road users. It is not enough to signal the maneuver; it is the responsibility of the merging driver to verify that there is sufficient space and that other vehicles can brake or maneuver without difficulty. The safety of all users is a priority in any merge into traffic.