Match the ratio and the description of what it measures$\mathrm{.}1.$t$\_\_-$tCompares the amount of net income earned for common stockholders to the average amount of common stockholders$$ equity$\mathrm{.}2.$t$\_\_-$tIndicates the amount of earnings generated for each share of outstanding common stock$\mathrm{.}3.$t$\_\_-$tRepresents the percentage of revenue that ultimately makes it into net income, after deducting expenses.