Class 4 Practice Results - Restart New Quiz Restart New Quiz #1. If you are unable to keep up with traffic on a steep grade, what should you do? (a) Take another route. (a) Take another route. (b) Keep right. (b) Keep right. (c) Use your four-way flashers. (c) Use your four-way flashers. Do (b) and (c). Do (b) and (c). If you must drive slower than other traffic, use your four-way flashers to alert other drivers, and keep right to let the drivers pass you safely. Next