Suppose your new year resolution is to get back in shape. you are considering various ways of doing? this: you can sign up for a gym? membership, walk to? work, take the stairs instead of the? elevator, or watch your diet. how would you evaluate these options and choose an optimal? one?

a. it makes the most sense to do the action that costs the least amount of money.

b. do a? cost-benefit analysis to compare the alternatives.

c. you should do the activity that gives you the greatest personal? benefit, regardless of the cost.

d. you should choose an activity randomly to avoid regretting your decision later.