Given the following program, what is the first line to fail to compile? 

A. Line 2

B. Line 4

C. Line 5

D. Line 6

E. Line 7

F. All of the lines compile.

1: public class Electricity { 2: interface Power {} 3: 4: 567 6: 8: 9: } public static void main(String[] light) { class Source implements Power {}; final class Super extends Source {}; var start = new Super() {}; var end = new Source() { static boolean t = true; }; }