Write a program in R which Select any data sets from the FRED so that you can use 3 variables with at least 5 observations for each variable. Use the plot() and points() functions to create a line plot comparing the variables. Then export the figure that you create in .png format and submit that as a separate file, Your figure must: 1. Clearly show what data set you are presenting 2. Have color and a different point type for each variable 3. Include a legend that does not overlap with the lines on the plot 4. Have a legible title, and x and y axes labels 5. Must be in .png format