A cylindrical region of space with radius \(R\) contains a spatially uniform magnetic field directed parallel to the cylinder's central axis. The magnitude of the magnetic field increases at a constant rate \(\dfrac{dB}{dt} = \alpha\), and the magnetic field is zero everywhere outside the cylinder (\(r > R\)). Which of the following graphs best represents the magnitude of the induced electric field \(E\) as a function of radial distance \(r\) from the central axis?