Little's Law states: I=TR with the average flow time T, the average inventory I, and the throughput R. When is Little's Law valid? Select one: a. Little's Law holds for processes where the average inflow rate is always strictly larger than the average outflow rate in the long-run b. Little's Law holds for processes where the average inflow rate is the same as the average outflow rate in the long-run c. Little's Law holds for processes where the average inflow rate is strictly smaller than the average outflow rate in the long-run d. Little's Law holds for any process