Which lines of code are valid declarations of a native method when occurring within the declaration of the following class？（）   
public class Qf575 {  
// insert declaration of a native method here 
 }  

A.native public void setTemperature（int kelvin）；
B.private native void setTemperature（int kelvin）；
C.protected int native getTemperature（）；
D.public abstract native void setTemperature（int kelvin）；
E.native int setTemperature（int kelvin） {}