The coefficient of determination

a$.$ ranges from $-1\mathrm{.}0$ to $+1\mathrm{.}0.$

b$.$ ranges from $.00$ to $1\mathrm{.}0.$

c$.$ describes the variation in the dependent variable caused by the control variable.

d$.$ tells you the percentage of the total variation in the independent variable caused by the dependent variable.

e$.$ ranges from $\mathrm{.}00$ to $+0\mathrm{.}5$