An advantage of marking with latch straps is that they:

• A. They help the door latch shut automatically
• B. Prevent the door from closing
• C. They seal the door
• D. They make the door harder to operate

Answer: (B)

Keeping doors from closing is the main idea behind using latch straps in marking. The strap acts as a physical reminder and stop that holds the door open or prevents it from latching shut, ensuring the doorway remains passable for responders and that a checked path stays accessible. This helps avoid the door slamming shut unexpectedly, which could trap someone or block movement during a search or rescue. It isn’t about sealing the door, nor about making it harder to operate or about automatic closure; those aren’t advantages of using latch straps.