依据《合同法》的规定，当合同履行方式不明确的，按照( )的方式履行。

A．法律规定

B．有利于实现债权人的目的

C．有利于实现债务的目的

D．有利于实现合同目的

A sea anchor is（）.

A.a heavy anchor with an extra long line used to anchor in deep water

B.a cone shaped bag used to slow down the wind drift effect

C.a padeye to which the sea painter is made fast

D.made of wood if it is of an approved type