How do you view the waveform of an audio layer?

The correct method to view the waveform of an audio layer in Adobe After Effects involves navigating through the layer properties. By clicking on the layer properties triangle, you will reveal additional properties related to that layer. Expanding the audio triangle allows you to access specific audio properties, and subsequently expanding the Waveform triangle enables you to see the visual representation of the audio waveform. This method provides a clear way to analyze audio levels and timing directly within the After Effects interface.

The other options do not effectively lead to the audio waveform view. Simply right-clicking the layer does not provide an option to directly show the waveform. Adjusting audio settings in preferences or importing the audio file does not facilitate direct visualization of the waveform within a layer; these actions pertain to managing audio settings or file handling rather than displaying the audio waveform.