Driving between two towns at $110 \mathrm{~km} / \mathrm{h}$ instead of $100 \mathrm{~km} / \mathrm{h}$ saves 9 minutes. The distance in kilometres between the two towns is
(A) 210
(B) 99
(C) 165
(D) 9900
(E) 150

## Part C: Each question is worth 8 credits.