Which of the following most appropriately illustrates the law of supply?

A、CorporationXYZhasaccesstomorelaborresourcessoitincreasesproduction.
B、BecauseSparrowCableisthetown'sonlycablecompany,itcanchargearelativelyhighpriceforitsservices.
C、Asthepriceofhamburgersrises,Joe'sBurgersiswillingtosellmorehamburgers.
D、Asthepriceofautomobilesincreases,peoplearewillingtobuyfewerautomobiles