ALGEBRA HELP !!!!! Which of the following is the simplest form of this expression? —photo attached

[tex] \displaystyle \frac{ \sqrt[5]{a^4}}{ \sqrt[3]{a^2}}= \frac{a^{\frac{4}{5}}}{a^{\frac{2}{3}}}=a^{\frac{4}{5}- \frac{2}{3}}=a^{\frac{12-10}{15}}=\boxed{a^{\frac{2}{15}}} [/tex]
Answer is: A. a^(2/15)