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Find the average time per unit required to produce the first 25 units, if the slope parameter of the learning rate is 87% and the first unit takes 448 hours, Choose the correct answer below. O A. Cys - 285.155 hours per unit O B. Cas = 7,125 hours per unit O C. C25 = 0.637 hours per unit O D. Cas = 203 682 hours per unit