Which of the following words is closest in meaning to “Hedge”?

Hedge means a fence or barrier.

• Correct answer - barrier: it has the same meaning as Hedge.
• support: to hold up or help - wrong, it does not mean the same as Hedge.
• agreement: a shared understanding - wrong, it does not mean the same as Hedge.
• conformity: compliance with rules or customs - wrong, it does not mean the same as Hedge.