Roberts Company sold equipment for $150,000, purchased a building for $6,000,000, sold short-term investments for $180,000, repaid principal on a note payable for $1,800,000 plus $130,000 of interest, and paid cash dividends of $40,000.

What was the net cash flow from investing activities?

a. $5,850,000 outflow.

b. $7,470,000 outflow.

c. $5,670,000 outflow.

d. $7,520,000 outflow.