can someone explain why C is correct?!

Diagnostic - Ch 12: Statement of Cash Flows Q 12.19: In Angel Company, land was sold for $100,000. Equipment was purchased for $20,000 cash. Angel Company also purchased a truck for $25,000 by issuing a five-year note payable. Bonds payable were issued for $50,000 cash. The net cash provided by investing activities is A $55,000. B $70,000. $80,000 x $105,000