Which scenario is an accurate example of how branches of the federal government can check each other‘s powers.

a- the supreme court rules an executive order unconstitutional so the president replaces some of the justices on the court.

b- The president vetoes a law passed by Congress but Congress override the veto with a 2/3 majority vote.

c- The president nominates a new judge to fill a federal court vacancy but the Supreme Court vetoes the candidate because of his inexperience

d-The Senate refuses to approve the presidents federal court nominees so the Supreme Court impeaches several senators.