Ineed !
the daily driving limit for time spent behind the wheel should be no more than
a- 2 hours
b- 2-4 hours
c-6-8 hours
d- maximum of 12 hours

 The answer your driver's ed test is looking for would be: C) 6 to 8 hours.  

In the real world, many people drive much longer hours. Commercial drivers are limited to 11 hours of driving in a 14 hour work day.

Hey i m confused bw c and d. but i think u can go for c