What is Dalton's Law in the context of an ideal gas mixture?

A、Thetotalpressureofagasmixtureisequaltothesumofthepartialpressuresofeachindividualgas.
B、Thevolumeofanidealgasisdirectlyproportionaltothenumberofmolesofgaspresent.
C、Thetemperatureofagasmixtureistheaveragetemperatureoftheindividualgases.
D、Thedensityofagasmixtureisdeterminedbythemostabundantgasinthemixture.