The "Off-By-One" Error Associated with Arrays Arises Because

The "off-by-one" error associated with arrays arises because

A) the first array index is 0 and programmers may start at index 1 or may use a loop that goes one index too far
B) the last array index is at length+1 and loops may only iterate to length, missing one
C) the last array index is at length-1 and loops may go one too far
D) programmers write a loop that goes from 0 to length-1 whereas the array actually goes from 1 to length
E) None of these; the "off-by-one" error has nothing to do with arrays