The function below represents the height of an object when it is dropped from a height of 144 ft, where x is the number of seconds after release. What is the average speed (or average rate of change) during the first 2 seconds after release?

f(x)=-16x^2+144

Group of answer choices

Rising at a rate of 32 feet per second

Falling at a rate of 144 feet per second

Rising at a rate of 80 feet per second

Falling at a rate of 32 feet per second