A wave source moves at a constant speed to the right through a uniform, stationary medium while continuously emitting waves of frequency \(f_0\) and wavelength \(\lambda_0\). Two stationary detectors, Detector \(X\) and Detector \(Y\), are located along the line of motion to the right and left of the source, respectively, as shown in the diagram. Which of the following correctly compares the frequency \(f_X\) detected at Detector \(X\) to \(f_0\), and the wavelength \(\lambda_X\) near Detector \(X\) to the wavelength \(\lambda_Y\) near Detector \(Y\)?