Is the Code Snippet Written Below Legal? (Lines Are Numbered

Multiple Choice

Is the code snippet written below legal? (lines are numbered for reference)

A) Yes.
B) No; there should be a semicolon at the end of line 2.
C) No; for i = 4, s.substring(i, i + 1) will result in an StringIndexOutOfBounds error.
D) No; line 4 should have no semicolon at the end.