Which of the following is a type of entry technique?

• A. Buttonhook
• B. Half-heart approach
• C. Zigzag approach
• D. Linear push

Answer: (A)

The concept being tested is recognizing a specific room-entry technique used in tactical entries. The buttonhook entry is a defined method where the lead officer uses a tight, curved motion around the doorway—often keeping the body close to the wall and the door frame—to gain immediate interior access while minimizing exposure. This “hook” around the corner allows the team to quickly peek and begin clearing the room, with teammates following to provide cover and support. It’s designed for speed and control in close quarters, reducing vulnerable exposure to threats just beyond the doorway.

The other terms don’t fit this formal entry technique as taught in standard training. They describe movement ideas or approaches that aren’t established as the specific entry method used to penetrate and clear a room. Therefore, the buttonhook is the best choice because it matches the recognized name and purpose of a controlled, entry-driven maneuver in this context.