Need R code and explanation. Load the mpg data from the tidyverse package, and answer the following questions.

a$)$ Using the color palette of your choice $($but not the default$),$ plot a facetted scatterplot of the mpg data

$($one for each drv type$)$ of cty versus hwy$,$ where different manufacturers are colored differently.

b$)$ Change the facet labels to read $"4$ wheel drive", "Forward drive", and "Rear drive".

c$)$ Group the manufacturer labels into German, American, Japanese, Korean. Hint for b and c: use

forcats to manipulate the factor levels of drv$.$