Question content area top Part 1 Use the data in the graph to complete parts​ (a) and​ (b) below. LOADING... Click the icon to view the graph. Question content area bottom Part 1 a. Which cost category varies the least among the different types of​ colleges? Can you explain why this category varies so​ little? ▼ varies the least. It has a variation of ​$    enter your response here. ​(Type an integer or a​ decimal.) Part 2 Why does this category vary so​ little? A. Tuition and fees varies the least because the operational costs for all types of colleges are the same. B. 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. C. Transportation varies the least because students at all types of colleges have the same mode of transportation. D. 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. Part 3 b. 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? A. ​Transportation, because commuters must spend more money to get to school than students living on campus B. Room and​ board, because it costs less to live on campus than to live off campus C. Books and​ supplies, because​ two-year public colleges require more books and supplies than​ four-year private colleges D. Tuition and​ fees, because​ two-year public colleges need to charge more to attend due to smaller enrollment numbers