The answer is D. Speed. The equation for speed is distance/time. For example, If I were to travel 60 miles in two hours, to find the average speed, you would divide 60 by 2, to get 30 miles/hour.
Most ultrasound technicians train in an associates degree, but can also get a bachelors degree in the field. There is also certification programs you can go through. Hope this helped!!! :)
