Which code should be inserted at line 1 of Demo.java to compile and run Demo to print "pizzapizza"?

Given a class Repetition:

1. package utils;
2.
3. public class Repetition {
4. public static String twice(String s) { return s + s; }
5. } and given another class Demo:
1. // insert code here
2.
3. public class Demo {
4. public static void main(String[] args) {
5. System.out.println(twice(“pizza”));
6. }
7. }

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;