Question

acceleration is defined as the rate of change for which characteristic?
velocity
displacement
time
position

Explanation:

Acceleration is a fundamental concept in physics. By definition, it is the rate at which velocity changes over time. Displacement is related to position change over time (velocity), time is just the independent variable in many kinematic equations, and position change over time is velocity. So, acceleration's definition directly ties to velocity's rate of change.

Answer:

velocity