Final answer:
Resistance training benefits obese individuals by improving insulin sensitivity, which aids in controlling blood sugar levels and can prevent Type 2 diabetes, while also increasing muscle mass and resting metabolic rate to support weight loss.
Step-by-step explanation:
The advantage of resistance training in an obese individual working to lose weight is c) Improved Insulin Sensitivity. Resistance training can enhance the body's ability to use insulin effectively, which plays a key role in controlling blood sugar levels and thus assists in managing and preventing Type 2 diabetes - a common condition associated with obesity. Moreover, resistance training also contributes to increased muscle mass and a higher resting metabolic rate, which means more calories are burned at rest, aiding in weight loss efforts.
It's important to note that while resistance training can improve insulin sensitivity, other options listed such as increased appetite, decreased metabolism, and reduced muscle mass are not benefits of resistance training for weight loss. In fact, they are counterproductive to weight management goals.