The new government decided to rescind most of the decisions of its predecessor.

Answer: Option C

Rectify : put right; correct.
Modify : make partial or minor changes to (something).
Revoke : officially cancel (a decree, decision, or promise).
Reconsider : consider (something) again, especially for a possible change of decision regarding it.
Rescind : revoke, cancel, or repeal (a law, order, or agreement).

Synonym of Rescind is Revoke