A programmer created a simple fixed$-$size data structure, an array, to hold bingo numbers for a new phone application. The first number in the array is $99.$ If the first number in the array is used to tell the program how many numbers are currently in the array, how large is the array?

Question $43$ options:

It is a variable sized array and so the total possible values are infinite.

There is no way to know for sure because it is run$-$time allocated.

$98$

$100$