Ashogun would most likely be found

on the battlefield. at the kabuki theatre. in the imperial palace. at a shinto temple.

The correct answer is on the battlefield

I believe the answer is: On the battlefield.
Unlike the western general, a shogun would most likely join the war in order to increase the troops'  morale, even though He did not necessarily have to lift any weapon.
In every battlefield, a shogun could usually be found in the army's main camp.