[SC悬赏令] pack6模考语法题求助

题目：Even though recent national statisticssuggest a revival in business activity, some credit-market analysts maintainthat the Federal Reserve Board needs to lower short-term interest ratesfurther for stimulating the economy.

1 the Federal Reserve Board needs to lower short-terminterest rates further for stimulating

2 the Federal Reserve Board needs tolower short-term interest rates further in order to stimulate

3 the need is for the Federal Reserve Boardto lower short-term interest rates further for stimulating

4 there need to be a further lowering bythe Federal Reserve Board of short-term interest rates for the purpose ofstimulating

5 short-term interest rates need to belowered further by the Federal Reserve Board so as to stimulate

Correct answer. B