"The least expensive and most sustainable way to meet our energy needs into the future is to: Select one: a. drill for oil wherever it is found. b. develop renewable energy sources. c. invest in nuclear energy. d. explore energy sources on other planets."

You are in the market for a new refrigerator for your company’s lounge, and you have narrowed the search down to two models. the energy efficient model sells for $700 and will save you $45 at the end of each of the next five years in electricity costs. the standard model has features similar to the energy efficient model but provides no future saving in electricity costs. it is priced at only $500. assuming your opportunity cost of funds is 6 percent, which refrigerator should you purchase