Which of the selections are completely FALSE?

It is not necessary to initialize accumulator variables.

II$-$ In a nested loop, the inner loop goes through all of its iterations for every single iteration of the outer loop.

III$-$ To calculate the total number of iterations of a nested loop, add the number of iterations of all the loops.

IV$-$ The process of input validation works as follows: when the user of a program enters invalid data, the program should ask the user "Are you sure you meant to enter that? $"$If the user answers "yes," the program should accept the data.

V$-$ A counter$-$controlled loop always repeats a specific number of times.