Last year Poseiden Corporation had an ROA of $9\mathrm{.}9\%$ and a dividend payout ratio of $50\mathrm{.}1\%.$ What is the internal growth rate?

$5\mathrm{.}2\%$

$2\mathrm{.}22\%$

$98\mathrm{.}01\%$

$1\%$