Answer: LAST OPTION.
Explanation:
You need to remember that a line intercepts the x-axis when y is equal to zero (
)
Knowing this and given the graph of the line
, you can observe in the figure attached that this line intercepts the x-axis at this point:

Where:
and

Therefore, you can identify that the x-intercept is the x-coordinate of this point, which is:

This matches with the last option.