The answer is C.
It’s a solid line so you know it has to be an inequality with a “or equal to” sign. Which leaves you with B or C. Find a point that isn’t on the line to test, use origin to make it simple. Plug it in for the x and y values. So 0 is greater than it equal to 0 - 3 which is -3. 0 is greater than -3 which means C is correct.