$$\left( {\frac{{2 + \sqrt 3 }}{{2 - \sqrt 3 }} + \frac{{2 - \sqrt 3 }}{{2 + \sqrt 3 }} + \frac{{\sqrt 3- 1}}{{\sqrt 3+ 1}}} \right)$$simplifies to = ?

$$\left( {\frac{{2 + \sqrt 3 }}{{2 - \sqrt 3 }} + \frac{{2 - \sqrt 3 }

1.	$$\left( {\frac{{2 + \sqrt 3 }}{{2 - \sqrt 3 }} + \frac{{2 - \sqrt 3 }}{{2 + \sqrt 3 }} + \frac{{\sqrt 3- 1}}{{\sqrt 3+ 1}}} \right)$$simplifies to = ?
A.	$16 - \sqrt 3 $$
B.	$4 - \sqrt 3 $$
C.	$2 - \sqrt 3 $$
D.	$2 + \sqrt 3 $$
Answer» B. $4 - \sqrt 3 $$