A Person Consumes 2,100 Kcal/day While Expending 3,400 Kcal/day

Multiple Choice

A person consumes 2,100 kcal/day while expending 3,400 kcal/day.In a month's time,about how much weight would this person lose if the loss were essentially all from body fat? (Body fat has an energy content of about 4 100 kcal per pound. )
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A) 19 pound
B) 29 pounds
C) 10 pounds
D) 5 pounds
E) 38 pounds