阅读下列四篇短文，从每小题后所给的A,B,C或D四个选项中，选出最佳选项。
Guide to Stockholm University Library
Our library offers different types of studying places and provides a good studying environment.
Zones
The library is divided into different zones.The upper floor is a quiet zone with over a thousand places for silent reading，and places where you can sit and work with your own computer.The reading places consist mostly of tables and chairs.The ground floor is the zone where you can talk.Here you can find sofas and armchairs for group work.
