How many times per week and for how long should Active Component units, individuals, and Reserve Component Soldiers on active duty conduct vigorous PRT during the unit's normal duty day as determined by the commander?

A. 3 times per week for 30 minutes
B. 5 times per week for 60 minutes
C. 4 times per week for 45 minutes
D. 2 times per week for 20 minutes

The frequency and duration of Physical Readiness Training (PRT) varies based on the individual's fitness level and the commander's decision. Generally, adults should engage in 75 to 150 minutes of vigorous physical activity per week. This can translate to three to five sessions per week.

Explanation:

The question you're asking is about the frequency and duration of Physical Readiness Training (PRT) that Active Component units, individuals, and Reserve Component Soldiers on active duty should conduct as decided by the commander. This leans more towards a military health and fitness regulation question, rather than a math or science one. Specific guidelines may vary from one military unit to another, but a generally accepted recommendation for vigorous physical activity for adults, including military personnel, is roughly 75 to 150 minutes a week. This could come out to about three to five sessions per week, depending on the duration of the activity. However, it's essential that the commander takes into account the fitness level and training capacity of the soldiers to determine a realistic and effective regimen.

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