Answer:
d. All of the above are correct
Step-by-step explanation:
Since 2012 is the base year, the CPI index in 2012 is 100
Cost of basket of good in 2012 = $80
Cost of basket of good in 2013 = $84
Cost of basket of good in 2014 = $87.6
Change in inflation in 2013 as compared to 2012 = ((84 - 80)/80)*100
= 5%
index in 2013 = 100 + (100*5%)
= 105
Change in inflation in 2014 as compared to 2013 = ((87.6 - 84)/84 )* 100 = 4.3%
index in 2014 = 105 + (105*4.3%)
= 109.5
Therefore, The value of the CPI was 100 in 2012, 105 in 2013 and 109.5 in 2014