Which of the following best defines instantaneous speed? (3 points)

It is a measure of how far an object moves in a certain time.
It is the total distance traveled over the total time.
It is the speed of an object in a specific direction.

option 1st

Explanation:

and there is a one more definition of instantaneous speed

(A) It is measure of how far an object moves in a certain time.

Explanation:

the relative standard reduction potential of the half-cell in which reduction occurs; more positive than the other half-cell. reduction is a chemical process in which electrons are added to an atom or an ion; it always occurs accompanied by oxidation of the reducing agent.

it is either c or d and i know for sure it is not a or b