Find the roots of the quadratic equation $x^{2}+10x+7=0$ by using the method of completing the square.

• A
  $-5-3\sqrt{2}$ and $-5-3\sqrt{2}$
• B
  $-5+3\sqrt{2}$ and $-5-3\sqrt{2}$
• C
  $5+3\sqrt{2}$ and $5+3\sqrt{2}$
• D
  $-5+3\sqrt{2}$ and $5+3\sqrt{2}$