Find the following limit or state that it does not exist. Assume b is a fixed real number.
lim x->b ((x-b)^20 - x + b) / (x - b)
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
A. lim x->b ((x-b)^20 - x + b) / (x - b) =
(Type an exact answer.)
B. The limit does not exist.