How do the concepts of 'new construction' and 'alterations' differ under the ADA standards?

• A. New construction must be accessible; alterations must remove barriers where feasible and maintain or create access in the altered areas.
• B. New construction and alterations both require only ramps.
• C. New construction must comply with only some accessibility features; alterations ignore accessibility.
• D. Alterations only require signage changes.

Answer: (A)