The correct answer is C)The distance across the fish tank, and the time it took.
Step-by-step explanation:
To find the average velocity the formula is:
Average Velocity=( Distance traveled/Time taken)
So to find the average velocity we need to have the total distance traveled by the fish and the time that is taken to travel that distance. These values and by using that formula i.e. dividing distance by time taken we can get the average velocity