[单选题]

Under a time charter， the hire is payable in advancefor a month or other period.If the hire is not paid promptly the（）may be entitled to cancel the charter.

A.agent

B.shipowner

C.charterer

D.broker

Under a time charter， the hire is payable in advancefor a month or other period.If the hire is not paid promptly the（ ）may be entitled to cancel the charter.