1. An accountant may have difficulty classifying costs as fixed or variable beca

1. An accountant may have difficulty classifying costs as fixed or variable because _____.a. costs may behave in a nonlinear wayb. costs may be affected by more than one cost driverc. the decision situation may cause the costs to be fixed in the short termd. all of these answers are correct2. If the proportions in a sales mix change the _____.a. contribution margin per unit increasesb. break even point will remain the samec. cost volume profit relationship also changesd. net income will not be altered3. _____ will decrease a companys break-even point.a. Reducing its total fixed costsb. Decreasing contribution margin per unitc. Increasing variable cost per unitd. Decreasing the selling price per unit4. Costs that change abruptly at intervals of activity because the resources and their costs come in indivisible chunks are called _____.a. mixed costsb. variable costsc. fixed costsd. step costs