Answer the following question given this paragraph: 

How fast or slow something moves is its speed . Speed determines how far something travels in a given amount of time. The SI unit for speed is meters per second (m/s). Speed may be constant, but often it varies from moment to moment.


Q: What unit of measurement determines how far something travels in a given amount of time?

 Choices:

- distance

- volume

- density

- speed

A:
speed
