Which of the following is a benefit of resistance training?

Improved metabolic rate is a significant benefit of resistance training because engaging in strength exercises increases muscle mass. Muscle tissue burns more calories at rest compared to fat tissue, which enhances the body's overall energy expenditure. This elevated metabolic rate can lead to more effective weight management and fat loss over time, even when not exercising.

While resistance training can have some influence on flexibility through certain movements, it is primarily not known for increasing flexibility as much as targeted flexibility training would. Enhanced cardiovascular endurance is typically associated with aerobic exercises, rather than resistance training, which focuses more on muscle strength and hypertrophy. Though resistance training can contribute to fat loss by increasing overall calorie burn, the direct benefit cited in this instance relates primarily to its impact on metabolic rate.