A shooter experiencing a heart rate of 145 BPM is likely to lose what type of skills?

The correct choice is complex motor skills. When a shooter's heart rate rises significantly, such as to 145 beats per minute, it can have a substantial impact on their physical performance. Complex motor skills require precise coordination, timing, and the ability to make quick adjustments in response to changing conditions. These skills often involve intricate movements and the integration of multiple body parts, which can be severely disrupted by high levels of physiological stress, such as increased heart rate.

During heightened stress, the body tends to prioritize survival responses, which can lead to a decrease in the ability to perform tasks that require intricate, coordinated movements. While fine motor skills may also be affected, the degree of impact on complex motor skills is typically more pronounced because of their reliance on mental focus and physical coordination under stress. Gross motor skills, on the other hand, are generally less susceptible to this type of physiological response since they involve larger movements of the body, which can still be executed even in a heightened state of arousal. Cognitive reasoning skills, while also potentially impacted, primarily concern mental processes rather than physical performance. Therefore, the most accurate answer regarding the loss of skills at a heart rate of 145 BPM is the loss of complex motor skills.