In the question below, a phrase is given followed by four sentences. Each sentence has one phrase highlighted. The given phrase can be used to replace the highlighted phrase in the sentences. You are required to identify the sentence where the given phrase can replace the highlighted phrase grammatically and contextually. If the given phrase cannot replace any of the highlighted phrase, mark 'none of these' as your answer.  Tightening one's belt

The phrase TIGHTENING ONE'S BELT means managing to spend less money; to use less of something. This is synonymous to the phrase in (b), as CUTTING CORNERS means to economize; set money aside for later use. Here the sentence tells that government investment like infrastructure spending cannot be achieved by spending less of money since such investments help save money in the long term. Thus (b) is the right answer. (a) is incorrect as GET OUT OF HAND means to get out of control. (c) is incorrect as CUT SOMEBODY SOME SLACK is used to tell someone to not be too critical. (d) is incorrect as EASY DOES IT means to slow down and proceed carefully.