Answer:
D. a crime.
Step-by-step explanation:
According to another source, the correct options that come with this question are:
A. lying.
B. going to war.
C. not listening to Congress.
D. a crime.
For impeachment proceedings to take place, a president has to be accused of having committed a crime. Impeachment is the process by which the lower house brings charges against an officer of government, in this case the president. The only possible penalties due to impeachment are removal from office or disqualification to enjoy any office of honor, trust or profit in the United States.