Which of the following is a benefit of resistance training?

Resistance training is specifically designed to improve muscle strength and size through various forms of resistance, such as weights, resistance bands, or bodyweight exercises. When engaging in this type of training, muscles experience stress, which leads to micro-tears in muscle fibers. As these fibers repair, they become stronger and larger, resulting in increased muscle strength and hypertrophy. This adaptation is a primary goal of resistance training, making the answer focused on muscle strength and size the most accurate.

While resistance training may have some indirect benefits to cardiovascular fitness and flexibility, these are not its primary benefits. It does not decrease muscle strength, as that would contradict the very purpose of such training.