Which types of activities should be done with flexibility exercises for the best workout possible?
mental and strength
strength and cardiorespiratory
mental and cardiorespiratory
strength and endurance

Strength and endurance exercises should be performed with flexibility, for the best workout. Stretching exercises, running, and weight lifting exercises can be done for improving the three parameters. This improves the stamina and improves the muscle flexibility as well.

The answer is d because , safety almost always works, to prevent stds and pregnancy