A national trucking company that operates in 8 provinces is concerned about distracted driving among its drivers. They are particularly concerned with cell phone usage and driving. To evaluate their concern, the company decides to survey its drivers

The company believes that the extent of distracted driving may vary by province due to the differing provincial laws on distracted driving. The company decides to randomly select fifty drivers from each of the 8 provinces and ask how many times they've used their cell phone while driving in the last six months.

a) [2 marks] Name the sampling method being used here and briefly explain if this is the most appropriate sampling design.

b) [2 marks] Does the above sample involve any sampling error? If so, briefly justify. If not, briefly explain why not.

c) [2 marks] Does the above sample involve any response bias? If so, briefly justify. If not, briefly explain why not.