Wendy,Greta,Tom,and Bill Have All Made New Year's Resolutions to Lose

Wendy,Greta,Tom,and Bill have all made New Year's resolutions to lose weight.Based on the information below,which of them is MOST likely to lose weight?

A) Greta,who intends to dramatically reduce her fat intake and tells others that she is greatly committed to her diet
B) Bill,who feels that it is important to cut back his calorie intake but is unsure of whether he will need to increase his exercise
C) Wendy,who appreciates the importance of regular exercise but says that it is difficult to find the time to do so
D) Tom,who wants to lose weight but tells others that he really doesn't understand why people make such a fuss over diet and exercise
E) None of them will lose weight.