单项选择题

阅读下列短文，从每题所给的四个选项(A、B、C和D)中选出最佳选项。
A

There were many beautiful buildings in ancient (古代的) Rome (罗马), but the living conditions for ordinary people were bad. Most of their homes were so poorly made that they fell down or were fire hazardous (危险的) with their steep (陡), narrow wooden stair ways. Most people were packed (挤满) into apartment (公寓) buildings that rose six to twelve floors, above the ground. The apartments were rooms about three metres square, and each building housed about five hundred people. These tall buildings faced each other across streets only three metres wide, so no sunlight reached the ground. Even so, apartments were costly, though cheaper places could be found outside Rome. But people wanted to be near their work and entertainment (公众娱乐). So the streets became crowded and it was hard to move quickly. At night, the streets were filled with noise as food and supplies were brought into the city on carts.

In ancient Rome, most people______.