ABC company paid $2.2 million to purchase stock in another company, $1.0 million to repurchase its own common shares on the market, $0.5 million to buy investments, sold used equipment for $0.8 million (when its book value was $0.6 million), and purchased new equipment for $3.4 million. What was the net cash flow for investing activities?

A.$6.3 million net cash outflow

B.$5.3 million net cash outflow

C.$5.1 million net cash outflow

D.$4.8 million net cash outflow