c$)$ Which variable would you plot on the $y-$axis?

A$.$ Since months of experience is the explanatory variable, it should be plotted on the $y-$axis.

B$.$ Since productivity rating $($on an index scale$)$ is the response variable, it should be plotted on the $y-$axis.

C$.$ Since months of experience is the response variable, it should be plotted on the $y-$axis.

D$.$ Since productivity rating $($on an indefx scale$)$ is the explanatory variable, it should be plotted on the $y-$axis.