Neither eating fewer calories nor exercising more, taken separately, will guarantee that one will lose weight. To be successful at losing weight, one must do both because exercising more can cause the exerciser to eat as many or more calories as one burns and because eating fewer calories may result in lethargy that reduces the dieter's inclination to exercise.
If the stated claims are true, an appropriate test as to whether or not one will be successful at losing weight is one's ability to
A) reduce one's calorie intake while increasing one's exercise regimen
B) reduce one's calorie intake while decreasing one's exercise regimen
C) hold one's calorie consumption steady while decreasing one's exercise regimen
D) reduce one's calorie intake while maintaining one's exercise regimen
E) increase one's calorie intake enough to support a much more strenuous exercise regimen
Source: 800Score