The best scenario that represents the president acting in the role of commander in chief is:
d.ordering a military strike on a foreign target
As a commander-in-chief, the President is charge of the U.S. Armed Forces (the Army, Navy, Air Force, Coast Guard, and Marine Corps). During wartime, he can decide on deploying troops and dispatching war ships. He can also give the go ahead for air strikes, bombings and invasions.
