(E2) There was a constant inflation rate of 3.1% per year from mid-2005 through mid-2010. From mid-2010 through mid-2014, there was a constant inflation rate of 3.8% per year. Then, from mid-2014 to mid-2015, the inflation rate was 4.3%. What is the correct calculation to find the average inflation rate from mid-2005 to mid- 2015? O 5x3.1+4x3.841x4.3 10 3.1+3.8+4.3 3 O 3.1+3.8+4.3 10 O 3.1x5+3.8x4+4.3x1 3