Select which of the following lists includes only capital resources (and therefore no labor or land resources)? 1) an ice arena; a professional hockey player; hockey uniforms. 2) the owner of a new startup firm; a chemistry lab; a researcher. 3) a hydroelectric dam; water behind the dam; power lines. 4) autos owned by a car rental firm; computers at the car rental agency; the vans that shuffle rental customers to and from the airport.