Given a class Repetition: Which code should be inserted at line 1 of Demo.java to compile and run Demo to print "pizzapizza"?（）

• A、import utils.*;
• B、static import utils.*;
• C、import utils.Repetition.*;
• D、static import utils.Repetition.*;
• E、import utils.Repetition.twice();
• F、import static utils.Repetition.twice;
• G、static import utils.Repetition.twice;