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Fitness Gym, Inc., produces two basic types of weight-lifting equipment, Model 9 and Model 14. Pertinent data are as follows: (Click the icon to view the data.) departments. Read the requirements. lowest possible ratio of machine hours in order to calculate the contribution margin per machine hour. Example: 8:4 would be 2:1. Enter the amounts to the nearest cent.) Fitness Gym, Inc. should produce: A. Model 14, since this model results in the higher operating income pers B. Both Model 9 and Model 14 since both models provide positive contribution margins. C. Model 9 , since this model results in the higher contribution margin per machine hour. D. Model 14 , since this model results in the higher contribution margin per unit. Data table