To force an inward-opening door, which part of the Halligan bar is inserted between the stop and the jamb?

The correct choice refers to the adze end of the Halligan bar, which is specifically designed for prying and forcing doors. When attempting to force an inward-opening door, the Halligan bar's adze end provides an effective leverage point when inserted between the door stop and door jamb. This particular end is broad and flat, allowing it to catch on the edge of the door frame, creating the necessary space to apply force and manipulate the door open.

This technique is essential in firefighting and rescue scenarios, as it allows firefighters to gain quick access to buildings in emergencies. The shape and design of the adze end enhance its ability to pry, which is crucial in situations where a door must be opened quickly and forcefully.

Other parts of the Halligan bar, such as the blade end, pick, or blade side, are not optimally suited for this specific application and would not provide the same level of efficiency or effectiveness in forcing an inward-opening door.