1. On average, each person in the United States and Canada uses more than 300 gigajoules (GJ, equivalent to about 60 barrels) of oil per year. By contrast, in some of the poorest countries of the world, such as Ethiopia, Nepal, and Bhutan, each person generally consumes less than 1 GJ per year.

The primary purpose of this passage is to

a. inform.

b. persuade.

c. entertain.