Index Numbers & Time Series — features of the CPI-Industrial Workers

Which of the following statements regarding the Consumer Price Index-Industrial Workers (CPI-IW) are correct? I. CPI-IW is computed by the Labour Bureau. II. CPI-IW is used as a tool for measuring inflation. III. CPI-IW is utilized for regulations of wages and dearness allowance for workers and employees in the country. IV. CPI-IW is computed for male, female, rural areas and urban areas. Select the answer using the code given below.