Well, the r state is also known as the relaxed state. And that's because these two orange catalytic trimers have now moved far apart. They rotated, and so they created this relaxed structure. And in this structure, the active sites have a high affinity for the substrate molecule. And so what that means is the rate of activity of this enzyme when the enzyme's quadinary structure is in the r state will be much higher than compared to that T state. And that's exactly why, at high concentration of substrate, the activity of that enzyme will be high because it exists in that r state.