Tina is going for a bike ride. When she leaves her house, she starts pedaling and her speed steadily increases for a while. Then she coasts for a while at a constant speed before she starts pedaling again, and her speed steadily increases again at a slower rate than it did before. When her legs get tired, she coasts at a constant speed again. Finally, she reaches her destination and her speed steadily decreases until she comes to a complete stop.



Which graph represents Tina’s bike ride?