All else being equal, what happens to the unit contribution margin and the contribution margin unit increases? Select one: a. Both unit contribution margin and contribution margin ratio decrease. b. Both unit contribution margin and contribution margin ratio increase O c Unit contribution margin decreases while contribution margin ratio increases O d Unit contribution margin increases while contribution margin ratio decreases. All else being equal, what happens to the unit contribution margin and the contribution margin unit increases? Select one: a. Both unit contribution margin and contribution margin ratio decrease. b. Both unit contribution margin and contribution margin ratio increase O c Unit contribution margin decreases while contribution margin ratio increases O d Unit contribution margin increases while contribution margin ratio decreases