James and Ashley are going on a trip to the state park. They want to be out there for no more than 8 hours, and they also want to travel at least 30 miles. They can hike at a rate of 3mph, and they can canoe at a rate of 6mph. If the solution region is the amount of time they spend on hiking and canoeing do that they can meet their goals, which graph’s shaded area represents the solution region?