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

Impediment means a hindrance or obstruction.

• Correct answer - obstruction: it has the same meaning as Impediment.
• supplement: an addition - wrong, it does not mean the same as Impediment.
• implement: a tool; to carry out - wrong, it does not mean the same as Impediment.
• complement: something that completes - wrong, it does not mean the same as Impediment.