Which of the following is a promise advertisers could make to promote healthy living through their fitness training program?
"our supplements will increase your stamina! "
"pair aerobic exercise with fresh foods! "
"these pre-packaged products encourage muscle gains! "
"you can add ten pounds of muscle mass by next week! "

"Pair aerobic exercise with fresh foods!"

Explanation:

In order to promote healthy living they should use the sentnce that promotes aerobic exercise with fresh foods, so they are promoting a balanced diet and a healthier style of life by setting people for exercise and ecnouraging them and telling them that not only a good diet is necessary in order to have a healthy life, exercise is also a must do.