Final answer:
Sticky Keys benefits individuals with disabilities such as arthritis who cannot press multiple keys simultaneously. Sidewalk ramps and Braille signs are both forms of accessibility and accommodations required by the ADA.
Step-by-step explanation:
The Sticky Keys accessibility option is most beneficial for individuals with disabilities that make it difficult to press multiple keys at once, such as arthritis. This feature allows users to press one key at a time for key combinations instead of having to hold several keys simultaneously, making computer use more accessible. This feature may not be as beneficial for touch typists, gamers, or individuals with visual impairments as their needs are different when it comes to using a keyboard. Gamers often require rapid keypress combinations, touch typists rely on fluid keystrokes without locking keys, and individuals with visual impairments benefit more from options like screen readers or Braille displays.
Regarding the provided reference question, sidewalk ramps and Braille signs are forms of accessibility for people with disabilities and also accommodations required by the Americans with Disabilities Act. This makes option d the correct answer, as these are built to make public spaces more accessible to individuals with various disabilities, as mandated by law.