单项选择题

Authorized by clients, we are to purchase the following equipment by way of international competitive bidding.

A) 顾客委托我们正以国际招标的形式采购下列设备。
B) 受顾客委托,我们将以国际竞争性招标方式采购下列设备。
C) 受客户委托,我们正以国际招标方式购买下列设备。
D) 经顾客授权,我们正在以国际竞争性招标方式购买下列设备。