MrB Needs to Have His Gall Bladder Removed

Mr.B needs to have his gall bladder removed.His appetite has been poor.and he has lost 20 lb in the past 4 months.Before surgery he should

A) focus on fruit, vegetables, and organic foods.
B) allow his appetite to dictate his food choices.
C) increase his intake of energy, protein, vitamins, and minerals.
D) maintain a lower energy intake to reduce stress on his body.