Which sign prohibits turning left?

• A. No Left Turn
• B. No Right Turn
• C. No Vehicles Over Width Shown
• D. No Overtaking

Answer: (A)

A sign that bans a specific turn is a prohibitory sign. The one that forbids turning left is exactly that: it tells you left turns are not allowed at that location. When you see it, you must not make a left-hand turn; you can continue straight or turn right if those movements are permitted by other signs or road markings. The other options refer to different prohibitions—no right turn, no vehicles wider than a shown width, or no overtaking—so they don’t match the action that is banned here.