The angle between the straight lines \(\frac {x + 1}{2} = \frac {y - 2}{5} = \frac {z + 3}{4}\) and \(\frac {x - 1}{1} = \frac {y + 2}{2} = \frac {z - 3}{-3}\) is-

• A. 45°
• B. 30°
• C. 60°
• D. 90°