The answer is false. Proteins have about 9 jobs and their biggest task is building tissues and muscles. They also do things such as hormone and enzyme production, immune function, provide energy, cause biochemical reactions, relays as a messenger in the body, etc.
The answer is the last option.) All of the above. When working out at a higher intensity, you burn more calories which can cause weight loss, increased heart rate giving you a stronger aerobic workout, and breathe more b=deeply due to the intensity of the workout.
