where \( [t ] \) denotes greatest integer \( \le t \). If \( m \) is the number of points where \( f \) is not continuous and \( n \) is the number of points where \( f \) is not differentiable, then the ordered pair \( (m, n) \) is:
\( (3, 3) \)
\( (2, 4) \)
\( (2, 3) \)
\( (3, 4) \)