I always encourage them to exercise and diet as that is the most healthy and practical solution for me . Discipline of course is the most important tool . If you do n't have this , you will never be successful in your goal , whatever that may be , but in their case it 's losing weight . Unfortunately they ' ve tried exercise and diet , but it seems not to be effective to them , so now they are interested on finding the best diet pills .

Question with options to choose from: Why are some people interested in these pills ?
Possible answers:
a). To help them exercise better .;
b). To help them get in shape .;
c). To help them acquire more discipline .;
d). None of the above choices .;
b).