What useful information does the configuration of the y-axis provide to the reader?

The useful information that the configuration of the y-axis provides the reader:

The y-axis or the vertical line shows the dependent relationship that exists between its variables and the variables of the x-axis (the horizontal line).  It shows the reader how much the values on the y-axis depend on the variables of the x-axis.

Explanation:

On a graph, the y-axis shows the dependent variables or values which depend on the variables of the x-axis.  At the starting point or the zero coordinate, the y-axis and the x-axis are equal to zero.  However, as the x-axis increases in value, the values of the y-axis are then defined on the increasing values of the variables in the x-axis.  This implies that an experimenter chooses the values on the x-axis but does not determine the values that are on the y-axis.  Instead, she uses the values or variables lying on the x-axis to calculate the values on the y-axis.

the 4th option is the answer

answer; ///(c) i believe that the correct answer is ethnic relations bear many similarities across different global; good luck