Problem Solving (PS) | (91!-90!+89!)/89!=

\(\frac{91! - 90! + 89!}{89!} = \frac{91!}{89!} - \frac{90!}{89!} + \frac{89!}{89!}\)

\(\frac{91!}{89!}\) > Units place =0

\(\frac{90!}{89!}\) > Units place =0

\(\frac{89!}{89!} = 1\)

Answer should have 1 in the units place; only option D stands out

Answer = D