Answer:
D
Explanation:
That inequality being talked about is

Note that:
The inequality is:

This means that the inequality includes all values of the number line that are less than -3.25 or that are to the left of -3.25
Note that the number -8.4 is less than -3.25, because it is to its left on the number line.
Then the correct statement is:
The number -8.4 is a solution to the inequality because -8.4 is located to the left of -3.25 on the number line.