Dead end: A driver who sees this sign should understand that it means:
Correct answer: The road ends ahead and offers no way out.
Answer options
AThe road narrows to a single lane ahead
BThe road ends ahead and offers no way out Correct
CYou are heading in the wrong direction and need to go back
Why
A DEAD END sign means the street stops ahead without connecting to another road, so you will have to turn around to get out. It does not forbid entry; it only warns that there is no through route.