Find the value of sin 60° cos 45° – cos 60° sin 45°

• A. \(\frac{{\sqrt 3 + 1}}{2}\)
• B. \(\frac{{\sqrt 3 + 1}}{2\sqrt 2}\)
• C. \(\frac{{\sqrt 3 - 1}}{\sqrt 2}\)
• D. \(\frac{{\sqrt 3 - 1}}{2\sqrt 2}\)