A. Because it obstructs the flow of traffic
B. Because it increases the danger of rear-end collisions
C. Because it encourages vehicle drivers behind to overtake dangerously
Explanation:
Why must you not drive extra slowly for no good reason?
Slow driving is a nuisance to other road users as he tends to slow down the traffic. They increase the likelihood of a car being hit from behind due to difference in speeds that is sudden. In addition, it may lead to more drivers behind trying to overtake very risky parts of the road, resulting in more risky overtaking occurrences.