Which health related activity could be effectively completed using only internet resources?

Advertisements are filled with images of extremely fit and sometimes even underweight people. what is an example of how these images might positively influence a person’s health choices? a) choosing to use weight loss supplements to increase weight loss b) electing to skip meals to reduce calorie intake until target weight is met c) figuring out ways to purge after meals to reduce the number of calories consumed d) finding ways to increase physical activity to burn calories and increase heart weight

Ab+cd-> ad+bc is what kind of reaction

Which step in healthy decision making requires you to look at the decision you made and determined whether different actions would have produced different results