Activities that are outside of the relevant range: A. only affect fixed costs in a business setting OB. only impact variable costs in a business setting OC.can still affect costs in a business setting D. do not affect costs in a business setting Activity-based costing uses: A. multiple cost pools to develop a single allocation rate O B. multiple cost pools to develop multiple allocation rates o C. a single cost pool to develop multiple allocation rates V. a single cost pool to develop a single allocation rate