先由承租人选好所需机器设备，由租赁公司出资购买，并出租给承租人，这种租赁形式称为( )。

A．经营租赁

B．金融租赁

C．杠杆租赁

D．服务租赁

The type of contract where the buyer incurs opportunity cost but little or no additional cost risk is called （）.

A．fixed-price with incentive

B．firm-fixed-price

C．fixed-price with economic price adjustment

D．fixed-price with right of renewal