According to Little's Law, which statement is correct for a stable process: O a. For a given throughput, the average inventory is independent of the average flow time O b. For a given throughput, increasing the average inventory results in a reduction in the average flow time. O c. For a given throughput, increasing the average inventory results in an increase in the average flow time. O d. For a given throughput, decreasing the average inventory results in an increase in the average flow time