Following a lean approach to a "level and balanced" schedule, what batch quantities per cycle would result using the following monthly requirements data? Note: Assume set up times (changeover times) are negligible. Monthly Item Demand Forecast 5,000 2,000 3,000 1,000 Select one: O a. Approximately 227 A's, 91 B's, 136 C's, and 45 D's per cycle b. 500 A's, 200 B's, 300 C's, and 100 D's per cycle O c. 5,000 A's, 2,000 B's, 3,000 C's, and 1,000 D's per cycle O d. 50 A's, 20 B's, 30 C's, and 10 D's per cycle O e. 5 A's, 2 B's, 3 C's, and 1 D per cycle