Answer: B. The narrative had a clearly defined focus on the description of the head soldier.
Explanation:
The narrative focused on the actions and descriptions of the head soldier. It focused on how he had a crisp uniform that distinguished him from the other soldiers and how he had a stern look on his face.
It also mentioned how he took charge of the other soldiers and was making decisions and giving orders to the other soldiers. The entire narrative therefore, focused on this head soldier so indeed it had a clearly defined focus.