What does the white triangle painted on the road surface mean?

A)That drivers have right of way when changing lanes.
B)That the driver is obliged to stop the vehicle in all cases.
C)That it is mandatory to yield to vehicles approaching from the right lane when changing lanes.Correct
A triangle marked on the road surface, with the vertex opposite the shorter side pointing towards the approaching vehicle, indicates to its driver the obligation to yield the right of way to other vehicles at the next intersection.