In which one of the following situation will a firm require the most short term financing $?$ a$)$ A cyclical $,$ irregular growth firm following a flexible policy b$)$ A non cyclical $,$ irregular growth firm following a restrictive policy c$)$ A non cyclical $,$ constant growth firm following a flexible policy d$)$ A cyclical $,$ irregular growth firm following a restrictive policy e$)$ A cyclical $,$ constant growth firm following a flexible policy