A．It is because fast food restaurants are fast, informal, and inexpensive.B．It is because people can easily find fast food restaurants.C．It is because people like to eat hamburgers.D．It is because fast food restaurants sell nearly every kind of food.
A．It is because fast food restaurants are fast, informal, and inexpensive.
B．It is because people can easily find fast food restaurants.
C．It is because people like to eat hamburgers.
D．It is because fast food restaurants sell nearly every kind of food.