21. Consider the following code:

Int[] array = new int[];

Int index;

//assume that array is filled with values here

//assume that the user enters a value for index here

If ((index >=))&&(index<= array. Length)){

System.out.println(array[index]);

}

When could this code throw an exception?

A. When index is less than0. (my answer)

B. When index is equal to 0.

C. When index is greater that array.length.

D. When index is equal to array. length. (correct answer)

E. This code cannot throw an exception because the if statement prevents it.

Why is D the correct answer?