Amelia and Jack are the only observers in a Newtonian universe. Which of these scenarios describes both observers in an inertial reference frame? I - Amelia moves at a constant speed around a stationary Jack. II- Amelia moves in a straight line and at a constant speed toward a stationary Jack. III-Amelia and Jack move toward each other in a straight line and at constant speeds. A.)III only B.)II only C.)II and III only D.)I and II only

Amelia and Jack are the only observers in a Newtonian universe. Which of these scenarios describes both observers in an inertial reference frame? I - Amelia moves at a constant speed around a stationary Jack. II- Amelia moves in a straight line and at a constant speed toward a stationary Jack. III-Amelia and Jack move toward each other in a straight line and at constant speeds. A.)III only B.)II only C.)II and III only D.)I and II only