單項(xiàng)選擇題在通貨膨脹情況下,發(fā)行保值貼補(bǔ)債券,這是對(duì)哪種風(fēng)險(xiǎn)的補(bǔ)償?()

A.信用風(fēng)險(xiǎn)
B.購(gòu)買力風(fēng)險(xiǎn)
C.經(jīng)營(yíng)風(fēng)險(xiǎn)
D.財(cái)務(wù)風(fēng)險(xiǎn)