问题详情

下列哪个类声明是正确的？ ()
A．abstract class G2 extends superClass1,superClass2{...}
B．abstract public class classmates{...}
C．public final class NewClass extends superClass implemnets Interface1{...}
D．public abstract class String{...}请帮忙给出正确答案和分析，谢谢！