PLEASE HELP I WILL GIVE YOU BRAINLIEST HELP! The distance time graphs for two objects are shown below:

Two graphs labeled Object A and Object B are shown with distance in miles on y axis and time in hours on x axis. The first graph is a curved line going up and passing through origin. The second graph is a straight line going up and passing through the origin

Which statement is true?

Both objects move at variable speeds.

Both objects move at a constant speed.

Object A is moving at constant speed but Object B is moving at variable speed.

Object A is moving at variable speed but Object B is moving at constant speed.