A.after line 8

B.after line 6

C.after line 5

D.after line 10

A.leftand rightmust be private.

B.left, right, setLeft, and setRightmust be private.

C.setLeftand setRightmust be protected.

D.isValidmust be public.

A.Replace line 1with int sum = number.stream. parallel ( ). Reduce (0, (n, m) -> n + m);

B.Replace line 1 with int sum = numbers. Parallel ( ). Stream ( ). Reduce (0, (n, m ) -> n + m);

C.Replace line 1with int sum = number. Stream ( ) . flatMap (a -> a) .reduce (0, (n, m) -> n +m );

D.Replace line 1 with int sum = numbers. Stream (). Interate (0, a -> a+1. Reduce (0, (n m) -> n+m);

E.Replace line 1with int sum = numbers. ParallelStream ( ). Reduce (0, (n, m ) -> n + m);

A.var lines = Files.lines(Paths.get(INPUT_FILE_NAME));

B.var lines = Files.readAllLines(Paths.get(INPUT_FILE_NAME));

C.Stream<String> lines = Files.lines(INPUT_FILE_NAME);

D.Stream lines = Files.readAllLines(Paths.get(INPUT_FILE_NAME));

A.A runtime exception is thrown.

B.The compilation fails.

C.[-3, -2, -1]

D.[-1, -2, -3]