Adama Company reported a net income of $6,000 for the year ended December 31, 2017. During the year, accounts receivable increased $15,000, merchandise inventory decreased $12,000, accounts payable decreased by $20,000, and depreciation expense of $12,000 was recorded. During 2017, operating activities

a. used net cash of $5,000

b. used net cash of $29,000

c. provided net cash of $5,000

d. provided net cash of $21,000