An anlast collects the following set of ten returns from previous years:

Year 1 2.2%

Year 2 6.2 %

Year 3 8.9%

Year 4 9.3%

Year 5 10.5%

Year 6 11.7%

Year 7 12.3%

Year 8 14.1%

Year 9 15.3%

Year 10 18.4%

The geometric mean return is closest to:

A. 9.62%

B. 10.8%

C. 10.89%

I tried number of times, it doesnt give me the answer B. Therefore i need help on this.