Verified Answer :

C.) speed is derived quantity.

By definition, the speed of an object is given by:


\(v = \frac{dr}{dt}
\)

Where,

dr/dt: derived from the position with respect to time

Therefore, speed has units of length over units of time.

Thus, speed is a derived quantity, since it depends on the value of two other quantities.

Answer:

a derived quantity is:

C. Speed