Which Is an Example of People Trying to Make Better

Which is an example of people trying to make better choices for themselves?

A) Take out a pension plan with monthly contributions to provide a better future pension.
B) Insist that your partner doesn't buy chocolate or sugary drinks when at the supermarket, to help with your diet plans.
C) Pay for gym membership and go regularly in order to improve your fitness.
D) All of the above.