What Does the Role Commander-In-Chief Mean

Multiple Choice

What does the role Commander-in-Chief mean?

A) The President, a military officer, is the head of the armed forces of this country during both peace and war.
B) The President, a civilian, is the head of the armed forces of this country in war but not peace.
C) The President, a civilian, is the head of the armed forces of this country in peace but not war.
D) The President, a civilian, is the head of the armed forces of this country in peace and war.