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Question 3' 5 pts The average speed of vehicles traveling on a major highway between oAM and 10AM on a typical weekday is approximated by the function t) 2 2D: 4WE + 50. where fit} is measured in miles per hourimph] and t is measured in hours with t = D corresponding to 5 AM. Sally determines that the function has a relative minimum at the point {1, 30}. as indicated on the given graph. How can this point be interpreted in the context of the problem? 0 At 1 AM. the average speed ofvehicles on the highway is SD mph. C) At 6:311} AM. the average speed of vehicles on the highway is 1 mph. Q At T AM. the average speed ofvehicles on the highway is 30 mph