Roger wants to figure out how many classes and how many school clubs he can balance in his schedule. Each class requires 2.5 hours per week and each club requires an hour per week of his time. He knows he can handle a combination of up to 8 classes or school clubs, and that he can only spare 14 hours per week. If the solution region is the amount of class and the amount of clubs Roger can be involved in, which graph's shaded area represents the solution region?