HELP PLZ FAST!!!!!!!!!!!!!!! 
  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 slows down at a steady pace and comes to a complete stop at a stop sign. She waits at the stop sign until it is her turn to go. When she starts pedaling again, her speed steadily increases at a faster pace than it did before until she gets tired and steadily slows down to a complete stop.
Which graph represents Tina’s bike ride?
                                             
                                          
                                          
                                        
											 
											 
											 
											 
			                   
					                  