During the year, al's tools decreased its accounts receivable by $160, increased its inventory by $115, and decreased its accounts payable by $70. how did these three accounts affect the sources of uses of cash by the firm? select one: a. net source of cash of $45 b. net use of cash of $25 c. net use of cash of $115 d. net source of cash of $205 e. net source of cash of $120