What is the best description of the acceleration of an object?

An airplane changes elevation from 10,000 ft to 5,000 ft.

A remote-control car speeds up from 0 m/s to 15 m/s.

A car's velocity changes from 25 m/s to 20 m/s in 5 seconds.

A runner travels 100 m in one minute.

A car's velocity changes from 25 m/s to 20 m/s in 5 seconds.

Step-by-step explanation:

By definition, Acceleration is the rate of change of Velocity of an object.

I. e it is the (final velocity minus initial velocity) : by the time it took for the velocity to change.

If we observe the choices only one choice gives us all 3 components (final velocity, initial velocity, time taken for velocity to change), which is:

A car's velocity changes from 25 m/s to 20 m/s in 5 seconds.