Which sampling method below is stratified? Select one: O a. A car maker conducts a marketing study involving test drives performed by a sample of 10 men and 10 women in each of 4 different age brackets O b. Randomy number generated by a computer are used to select serial numbers of cars to be chosen for sample testing. O c. A car maker conducts a marketing study by interviewing potential customers who request test drives at a local dealership, O d. An auto parts suppliers obtains a sample of all items from each 12 different randomly selected retail stores. O e. A sample of products is obtained by selecting every 100th item on the assembly line. Which one is of ordinal level of measurement? Select one: O a. Consumer Reports magazine ratings of "best buy, recommended, not recommended". O b. Numbers on shirts of marathon runners in the 2018 Edmonton marathon O c. Favourite food of respondents. O d. Social insurance numbers (SIN). O e. The current temperatures in the cities of Alberta