This sign indicates a direction and sense that is...
A)recommended.
B)prohibited.
C)mandatory.Correct
Mandatory signs are circular with a blue background. In this case, the arrow on the sign in the question indicates the direction and sense that vehicles are obliged to follow, so only going straight ahead is permitted — changing direction or making a U-turn is not allowed.
If the sign is square, it indicates a one-way carriageway. Changing direction is permitted but making a U-turn is not.
Generally, prohibition signs are circular and white with a red border (except for the no-entry sign).
If the sign is square, it indicates a one-way carriageway. Changing direction is permitted but making a U-turn is not.
Generally, prohibition signs are circular and white with a red border (except for the no-entry sign).