In comparing alternatives with different lives by the future worth analysis, it is necessary to___________. A) compare them over a period equal to the life of the longer-lived alternative. B) compare them over a time period of equal service. C) compare them over a period equal to the life of the shorter-lived alternative D) compare the present worth over one life cycle of each alternative. Explain why. Do not waste time just selecting a,b,c, or d. You will not be rated.