Which of the following is a fundamental principle of firearm safety?

The principle of pointing firearms at safe targets only is a cornerstone of firearm safety. This guideline emphasizes the importance of ensuring that any firearm being handled is always directed towards an area where it will not cause harm if inadvertently discharged. By focusing on safe targets, the risk of accidental injury to oneself or others in the surrounding area is greatly minimized. It promotes a conscientious approach to firearm handling, fostering responsible use and awareness of one's environment.

The other options do not align with established principles of firearm safety. Practicing with a firearm is essential for developing proficiency and ensuring safe handling. Loading firearms in public places increases the likelihood of accidents and is contrary to safe handling practices. Keeping firearms disassembled may not be practical for all situations and does not relate directly to the principle of ensuring safe handling during use. Therefore, focusing on safe target alignment is critical in promoting overall safety when using firearms.