Answer:
C. Running into the hallway immediately so you can escape.
Step-by-step explanation:
Based on the answers provided within the question it can be said that the only exception in this scenario would be running into the hallway immediately so you can escape. This is a bad idea due to the fact that small narrow hallways give you nowhere to hide or run in the likely case that a shooter appears in that hallway. Therefore without a clear indication that there is an exit in that hallway, it is a bad idea.