Which of the following is a key principle of the “Five Elements of Fire Control”?

The key principle of the "Five Elements of Fire Control" is focused on the importance of proper sight alignment. Proper sight alignment is critical as it ensures that the shooter is accurately aligned with the target, which is essential for effective shooting. This involves aligning the front and rear sights with the target to create a clear sight picture. This principle is foundational for successful marksmanship; without correct sight alignment, even the best trigger control and breathing techniques can lead to missed shots.

By emphasizing proper sight alignment, shooters can improve their accuracy significantly, as this technique facilitates a better understanding of how the firearm is aimed. Mastering this element allows shooters to effectively engage targets and achieve their shooting goals. The other options, while potentially relevant to shooting practice, do not encapsulate the core principle that reinforces the understanding of alignment as foundational to effective fire control.