Please help with these questions from Macro

What is the unemployment rate supposed to measure and why is it an imperfect measure? The unemployment rate is supposed to It is an imperfect measure because O A. measure underutilized labor; it does not include marginally attached workers and part-time workers who want full-time jobs O B. be calibrated so that it equals zero in an expansion; despite their best efforts, the Bureau of Labor Statistics cannot get the unemployment rate to equal zero O C. measure the percentage of people in the working-age population who are unemployed; it does not include marginally attached workers and part-time workers who want full-time jobs O D. measure underutilized labor; it includes workers who are waiting to start a new job within 30 daysHow do we calculate the inflation rate and what is its relationship with the CPI? The inflation rate is calculated as O A. [(CPI in the base year - CPI last year) + CPI this year] x 100 O B. [(CPI this year - CPI last year) + CPI last year] x 100 O C. [(CPI this year - CPI last year) + CPI this year] x 100 O D. [(CPI this year - CPI in the base year) + CPI in the base year] x 100 When the CPI O A. rises slowly, the inflation rate is low O B. falls, the inflation rate is positive and low O C. rises slowly, the inflation rate is negative O D. is constant, the inflation rate is negative The CPI in 2011 was 225.7. The CPI in 2012 was 229.6. The inflation rate in 2012 was percent. >>> Answer to 1 decimal place. > >> If your answer is negative, include a minus sign. If your answer is positive, do not include a plus sign