This round red circle with a cross mark on the arrow warns that...

• A. Must not make a right turn at the sign
• B. Must not make a left turn
• C. Right turn allowed
• D. U-turn prohibited

Answer: (A)

Prohibition signs use a red circle to show something isn’t allowed. When the action is a turn, the arrow shows which direction is affected, and a cross over that arrow marks the ban. Here, the right-turn arrow has a cross, so turning right at that sign is not allowed. You should either go straight or, if permitted by other signs or rules, turn left. If it were a left-turn ban, the cross would be on the left-turn arrow; if right turn were allowed, there wouldn’t be a cross; a No U-turn sign would show a U-turn symbol with a cross.