Please answer

Use the data in the graph to answer parts (a) through (c). Click the icon to view the graph. a. Which category varies the most among the different types of institutions? By how much? varies the most. It has a variation of $ (Type an integer or a decimal.) b. Excluding "other expenses" which cost category varies the least among the different types of institutions? Can you explain why this category varies so little? A. Tuition and fees varies the least because the operational costs for all types of colleges are the same. O B. Books and supplies varies the least because students at all types of colleges need approximately the same number of books and supplies and these don't vary much in cost. O C. Room and board varies the least because it costs all types of colleges the same amount of money to have a student live on campus. O D. Transportation varies the least because students at all types of colleges have the same mode of transportation. c. Ignoring the "other expenses" category, the general trend is for all categories to cost more as you look down the chart from two-year public colleges to four-year private colleges. However, one category is an exception to this trend. Which category? Can you explain why? (Hint: If more than one category appears to have a downward trend, focus on the category with the largest downward trend.) Click to select your answer(s). javascript:doExercise(12); 3:40 PM