The comparison of alternatives using ROR analysis has which of the following true statements: a ROR analysis using PV or FV doesn't require equal lives b. ROR analysis using AW removes the need for equal lives C. ROR analysis of competing alternatives is answering the question of whether the next higher initial cost (PV) is worth the expense da and c above are both true e band c above are both true fa and b above are both true g. none are true