Solve the Inequality $$\frac { 3 x - 21 } { x ^ { 2 } - 1 } \geq 0$$

Multiple Choice

Solve the inequality. Write the solution set in interval notation.
- $$\frac { 3 x - 21 } { x ^ { 2 } - 1 } \geq 0$$

A) $[ - 1,1 ] \cup [ 7 , \infty )$
B) $( - 1,1 ) \cup [ 7 , \infty )$
C) $( \infty , 1 ) \cup [ 7 , \infty )$
D) $( - 1,7 ]$