Anna purchases ABC stock at $$87$ per share in March $2016.$ She sells the stock March $2022$ for $$96$ per share. What is her internal rate of return?

a$.,6\mathrm{.}15\%$

b$.5\mathrm{.}61\%$

c$.5\mathrm{.}19\%$

d$.1\mathrm{.}65\%$