The value of $$\sqrt {\frac{{\left( {\sqrt {12}- \sqrt 8 } \right)\left( {\sqrt 3+ \sqrt 2 } \right)}}{{5 + \sqrt {24} }}} $$is = ?

• A. $\sqrt 6- \sqrt 2 $$
• B. $\sqrt 6+ \sqrt 2 $$
• C. $\sqrt 6- 2$$
• D. ${\text{2}} - \sqrt 6 $$