If a Person Wants to Lose Weight,which of These Is

If a person wants to lose weight,which of these is a viable strategy?

A) substituting plain water for regular soda
B) eating the same number of calories,but eating them all as fruit and vegetables instead of burgers and fries
C) adding more fruits and vegetables on top of the current diet
D) exercising more
E) substituting plain water for regular soda and exercising more