Correct answer is (c) Scatter plot
The explanation: A line of best fit is a straight line drawn through the center of a group of data points plotted on a scatter plot. Scatter plots depict the results of gathering data on two variables. The line of best fit shows whether these two variables appear to be correlated and can be used to help identify trends occurring within the dataset. Analysts may use the line of best fit when determining a relationship between two variables where one variable is independent and one variable is being examined for dependency.