Select the most appropriate synonym of the word Amend.

Correct option is A

Rectify: To correct or put right.
Synonyms: fix, correct, repair, rectify.
Antonyms: corrupt, spoil, damage, worsen.
Meanings of the given words:
Harm: To cause damage or injury.
Impair: To weaken or damage something.
Worsen: To make or become worse.
"Amend" means to make minor changes to improve or clarify something, so "rectify" is the most appropriate synonym as it also means to correct or put right.