Find the Intervals on Which the Function Is Continuous $$y = \frac { x + 5 } { x ^ { 2 } - 7 x + 12 }$$

Multiple Choice

Find the intervals on which the function is continuous.
- $$y = \frac { x + 5 } { x ^ { 2 } - 7 x + 12 }$$

A) discontinuous only when $x = 3$ or $x = 4$
B) discontinuous only when $x = 3$
C) discontinuous only when $x = - 3$ or $x = 4$
D) discontinuous only when $x = - 4$ or $x = 3$