Answer:
(d) x ≤ 1.5
Explanation:
The solid dot is at 1.5, so you can eliminate any answer choice that does not have that value in it.
The dot is solid, so the inequality symbol will have the "or equal to" bar included. (The symbol will not be < or >.)
The only answer choice that has these features is ...
x ≤ 1.5
The fact that shading is to the left of the dot confirms that the correct answer choice will indicate values of x are less than or equal to 1.5.