A conducting material of uniform resistivity \(\rho\) fills the region between two concentric, highly conducting spherical shells of inner radius \(a\) and outer radius \(b\), where \(b > a\). A steady total current \(I\) flows radially outward from the inner shell to the outer shell. Which of the following statements correctly describes the behavior of the total radial resistance \(R\) as the outer radius \(b\) approaches infinity (\(b \to \infty\))?