Which of the following statements is CORRECT?

a$.$ When preparing the Statement of Cash Flows, increase in account receivable is treated as cash inflow.

b$.$ When preparing the Statement of Cash Flows, increase in inventories is treated as cash inflow

c$.$ When preparing the Statement of Cash Flows, increase in account payable is treated as cash outflow.

d$.$ When preparing the Statement of Cash Flows, depreciation is added back to Net Income because it is a non cash charge.

e$.$ When preparing the Statement of Cash Flows, increase in accrued wages and taxes is treated as cash outflow.