The city transportation commission surveys a random sample of licensed drivers, asking the question, "do you favor increasing the number of bus routes within the city limits? " which shows how bias might have affected the results of the survey? a. the question is biased in favor of bus riders. b. the question is biased against bus riders. c. surveying only licensed drivers creates a bias against people who don't have driver's licenses. d. since the survey used random sampling, it is unlikely to be biased.