Which of the following is NOT specifically mentioned in the Constitution?

a. The Vice President
b. Impeachment
c. The President's cabinet
d. All of the above I would say d) bro

I have never heard any thing about C. but I think there is a few things on A., but I know B. IS in there!

a & c

C. The cabinet is solely the discretion of the President. The VP and qualifications are specifically in the constitution,. He/she is also President of the Senate

Given those choices, c. The Vice President is mentioned several times, and the impeachment process is explicitly laid out.

However, the Constitution does mention "Heads of Departments" in Article II Section 2, which does mean the cabinet.