Answer:
A. The independent variable is the input variable and should be represented by the x-axis.
Explanation:
We know that while plotting a graph or a scatter plot the x-axis which is the horizontal axis of the plot represents the input value or the value of the independent variable and the output value i.e. the value of the function corresponding to the input value is represented by the y-axis.
As the value of the output is evaluated corresponding to the input value hence the variable y is also known as the dependent variable and is represented by the y-axis.