What is the overall change in cash resulting from: $$300$ increase in inventories, $$150$ increase in accounts payable, $$120$ decrease in accounts receivable, $$60$ decrease in other current assets, $$150$ decrease in other current liabilities, if the net working capital is unchanged?

a$.$

$-$$$240$

b$.$

$$180$

c$.$

$-$$$120$

d$.$

$$120$