Lead time for one of your fastest-moving products is 21 days. Demand during this period averages 100 units per day. a) What would be an appropriate reorder point? units (enter your response as a whole number). b) How does your answer change if demand during lead time doubles? units (enter your response as a whole number). c) How does your answer change if demand during lead time drops in half? units (enter your response as a whole number)