Given that $x = \sqrt [ 4 ] { 5 }$,
$$\left( x ^ { 2 } - 2 \right) ^ { - 1 }$$
which of the following is this expression equal to?
A) $1 + \sqrt [ 4 ] { 5 }$\\
B) $2 + \sqrt [ 4 ] { 5 }$\\
C) $1 + \sqrt { 5 }$\\
D) $2 + \sqrt { 5 }$\\
E) $1 + 2 \sqrt { 5 }$