Because of the popularity of social networking sites like Facebook, a growing number of people spend many hours on the Internet. Many games offered by these networking sites also have a growing number of users. Farmville is not just another game in Facebook. It consists of a series of chores on a digital farm. While the tasks may seem boring, many people spend hours doing them. Many of these hours are spent clicking a mouse to plant and harvest crops. The popularity of Farmville increased because people got pleasure "farming" the easiest way possible. More than 10% of Americans have digital farms thanks to Farmville.

Which of the following sentences best shows how the passage is organized?

A.
The popularity of Farmville increased because people got pleasure "farming" the easiest way possible.
B.
Many of these hours are spent clicking a mouse to plant and harvest crops.
C.
Many games offered by these networking sites also have a growing number of users.
D.
While the tasks may seem boring, many people spend hours doing them.