$$\sqrt{10 + 2\sqrt{6} + 2\sqrt{10} + 2\sqrt{15}} =$$

A

$$\sqrt{2} + 3 + \sqrt{5}$$

B

$$\sqrt{2} + \sqrt{3} + \sqrt{5}$$

C

$$\sqrt{3} + \sqrt{5} + \sqrt{6}$$

D

$$2 + \sqrt{3} + \sqrt{5}$$