Correct Answer: (a) Wholesale Price Index number
Solution:Wholesale Price Index (WPI) is an index used by the Reserve Bank of India till 2014 to measure inflation. WPI is the price of a representative basket of wholesale goods. It takes a basket of 697 items into account and shows the combined prices. The RBI, ex-governor Raghuram Rajan, Shifted to consumer Price Index (CPI) is because WPI neglects services and the bottlenecks between a wholesaler and a retailer. CPI, based on 260 commodities including certain services, measures the change in Prices at the retail level. The base year of CPI is 2012.