关于公允价值，下列各项中表述正确的是（）。

A.公允价值有可能以市场价格或模型定价两种方式计量

B.公允价值是内在价值

C.公允价值是企业会计处理的重要指标

D.公允价值是市场价格

Recently, employees at the Shanghai Metro’s Railway Station Stop have been busy learning dialects from other parts of the country, ___________ aims to provide better service to travelers from outside the city.

A．where

B．that

C．which

D．it