题目4单选题
若有接口 Printable 和 Drawable,一个类 Document 要同时实现这两个接口,正确的代码是( )A. class Document implements Printable, Drawable { }B. class Document extends Printable, Drawable { }C. class Document implements Printable; implements Drawable { }D. class Document implements Printable extends Drawable { }( )