Answer:
D
Explanation:
Look at the graph and find the lowest x value and the highest x value. We don't use y in the inequality because it is not a range question. Domain relates to x-values and range relates to y-values.
When you have found the lowest and highest x-values, look at their dots. If it is shaded, then the answer would contain a less than sign between the number and variable. If it shaded, then it would contain a less than or equal to sign.
Both of the dots with the lowest and highest values are shaded. And the lowest and highest values are -4 and 4 respectively.
Therefore, the answer is D.