You can earn thousands of dollars more from your mutual funds. The secret is to purchase no$-$load $($no front$-$end commission$)$ funds directly from companies specializing in this area. You can save $5\mathrm{.}75\%$ commission compared to loaded mutual funds when you buy no$-$load funds. That means you earn $$4,000$ more on a $$23,000$ investment over $10$ years. In this situation, the average annual interest rate of the fund is most closely which answer of the following?O a$.1270$ b$.6\%$O c$.15\%$O d$.9\%$