Devine Foods, a manufacturer of dough used for pizza base, buys Colina Agriculture's wheat flour on credit on 1 June. It processes this flour to make dough on 6 June and pays cash for the flour on 15 June. On 22 June it sells the dough to a chain of pizzarias, and on 3 July receives cash payment for this sale. What is the length in days of the cash cycle in this case? Select one: A. 28 days B. 18 days C. 8 days D. 12 days