Which code fragment should be inserted at line n1 to en…

Given:
class CheckClass {
public static int checkValue (String s1, String s2) {
return s1 length() – s2.length();
}
}and the code fragment:
String[] strArray = new String [] {“Tiger”, “Rat”, “Cat”, “Lion”}
//line n1
for (String s : strArray) {
System.out.print (s + “ “);
}
Which code fragment should be inserted at line n1 to enable the code to print Rat Cat Lion Tiger?

A.
Arrays.sort(strArray, CheckClass : : checkValue);

B.
Arrays.sort(strArray, (CheckClass : : new) : : checkValue);

C.
Arrays.sort(strArray, (CheckClass : : new).checkValue);

D.
Arrays.sort(strArray, CheckClass : : new : : checkValue);