In May 2022, a newspaper in Perth published an article comparing 4WD models of cars. In February 2022, the journalist visited several car dealerships, recording the following for the 5 most popular 4WD model of cars: fuel capacity (kilometres per litre), the number of cylinders, recommended retail price of the basic model ($000), capacity (seats), country of manufacture and colours.

a) Identify the five W's and how of the data.

b) Identify the quantitative variables and give the units.

c) Identify the categorical variables.