题目内容：
阅读下列短文,回答题目.Nipponex Electrics
Tokyo，Japan
27 August，2014
Amperlite Ltd
146 0’Leafy St
Dublin，Ireland
Dear Sirs，
Improved ways of production make US able to offer you our change of Drilite batteries(电池)at a reduced price for large quantities.
Further information of the New prices for your market are sent to you together with the letter，and you will see that the price has already reduced 5 percent.As c.i.f(成本、保险加运费)to Dublin is included in our prices，you will agree that they are clearly lower than those of producersof the same batteries，both here in Japan and elsewhere.The quality of our products remains thesame--only the finest chemicals are used.The new prices are for the least orders of l.000 poundsand will begin from January 1.Immediate sending off is sure because enough Can be made wheneveryou require it.
We appreciate your past dealing and cooperation(合作)with us，and look forward to supplying you in the new year at the new prices.
Yours truly，
Nipponex Electrics
If the Irish expect to enjoy the 5％of reduction at prices，they should__________. A．pay the Japanese at least￡1，000
B．order 1，000 pounds of batteries in weight
C．order￡1，000 worth batteries at least
D．Pay the Japanese￡1，000 ahead
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