Based on the graph, how would you BEST describe the speed of the racehorse?

Responses
A constantly decreasing speedconstantly decreasing speed
B both increasing and decreasing speedboth increasing and decreasing speed
C stopped, starting, and then stopped againstopped, starting, and then stopped again
D starting to move and then increasing speed

Based on the information given, the best description of the speed of the racehorse would be option D: starting to move and then increasing speed.