Calculator Sonarbien produces 24,000 units of cell phone. The production requires prime costs of $1,600,000, uses 5,000 machine hours, and takes 3,600 setup hours. The activity rates are $100 per machine hour and $260 per setup hour. What is the unit cost of a cell phone? (Note: Round your answer to two decimal places.) a. $87.50 Ob. $126.50 C. $105.67 d. $59.83 Ce. $107.50 Feedback Check My Wor Correct