The correct inequality that represents the graph is (A) x<0.
The graph shows a shaded area to the left of zero, which means that all the negative numbers on the number line are included in the solution. The inequality x<0 accurately reflects this, as it states that x must be less than zero.
Option x≤0 would also include zero, but the graph does not show the shaded area extending to zero.
Options x>0 and x≥0 would only include positive numbers, which is not the case for the graph.
Therefore, x<0 is the best representation of the graph.