Use an Inequality to Describe the Interval of Real Numbers $( - 9,1 ]$

Multiple Choice

Use an inequality to describe the interval of real numbers.
- $( - 9,1 ]$

A) $x \leq 1$
B) $- 9 < x < 1$
C) $- 9 < x \leq 1$
D) $- 9 \leq x \leq 1$