Define 'point of origin' in gunnery terms.

The term 'point of origin' in gunnery specifically refers to the location from which projectiles are fired. This is critical for understanding the trajectory, range, and overall effectiveness of the fire support being provided. Knowing the point of origin allows gunners and command staff to make necessary calculations and adjustments for factors such as distance, wind, and elevation to ensure that munitions accurately reach their intended target.

The other choices do not align with the definition of 'point of origin.' Coordinates of an enemy target relate more to the target’s location rather than the firing location. A strategic decision point during combat is focused on tactical command choices rather than the physical aspects of gunnery. The location of artillery supply pertains to logistics and resource management instead of the act of firing itself. Thus, the definition provided in the correct choice is very specific and essential for understanding gunnery operations.