List the Critical Values of the Related Function $\frac { 3 } { x ^ { 2 } - 4 x + 3 } \leq \frac { 5 } { x ^ { 2 } - 9 }$

Multiple Choice

List the critical values of the related function. Then solve the inequality.
- $\frac { 3 } { x ^ { 2 } - 4 x + 3 } \leq \frac { 5 } { x ^ { 2 } - 9 }$

A) $- 3,1,3,7 ; ( - \infty , - 3 ) \cup ( 1,3 ) \cup [ 7 , \infty )$
B) $- 3,1,3,7 ; ( - 3,1 ) \cup ( 3,7 ]$
C) No critical values; $\varnothing$
D) $3 ; ( - \infty , 3 )$