89 Given an integer-coefficient polynomial, a student found that $f(-2)=-56, f(1)=-2, f(3)=53$, $f(6)=528$, where exactly one of these is incorrect. The incorrect one is
A. $f(-2)$
B. $f(1)$
C. $f(3)$
D. $f(6)$
89 C. Obviously, when $m$ and $t$ are integers,
$$
m-t \mid f(m)-f(t) .
$$

It has been verified that the calculation of $f(3)$ is incorrect.