An aggressive driver is defined as
a. an inattentive driver.
b. a high risk driver.
c. a slow driver.

An aggressive driver is defined as B. a high risk driver. If someone is driving aggressively, it means that they are endangering other people, as well as themselves by driving recklessly and dangerously. These people shouldn't be trusted with driving as they are highly unreliable. They don't need to be inattentive or slow, but they are dangerous to themselves and others.

It may possibly be c i think |-/