Which example represents the principle of "perceptible information"?

The principle of "perceptible information" refers to providing information to users in a way that it can be perceived through various modalities, ensuring that all users—regardless of their sensory abilities—have access to the same information. The correct choice showcases this principle by incorporating both visual and audio signals at transportation stations.

These signals can cater to different users; those who can see will benefit from visual cues, such as lighted signs or screens, while those who may have visual impairments can rely on auditory signals, like announcements or sounds. This multifaceted approach ensures that information is accessible to a wider audience, which is a core tenet of accessibility.

The other choices do not adequately represent the principle. Automatic sensors in public bathrooms primarily offer convenience but do not convey information in multiple accessible formats. Printed materials with extensive text may not be easily interpreted by individuals with certain disabilities, such as blindness or those with reading difficulties. Large control panels with many buttons might overwhelm users and lack clarity, not necessarily providing information in a manner that is easily perceivable to everyone.