Answer:
The correct answer is c. Marginal analysis
Step-by-step explanation:
Marginal analysis is a technique you can apply when you are comparing some options. We can say this analysis is an examination of the additional benefits of an activity compared to the additional costs incurred by that same activity. Using this technique you can maximize the potential profits.
The additional cost versus the additional benefit of a decision. In this case, Bill and Alma are analyzing if living 10 miles closer to their workplaces ( benefit) is worth the extra $25,000 in the cost of the house(cost). This is marginal analysis.