For People Interested in Architecture or Design for the Disabled

For people interested in architecture or design for the disabled and using the ANSI standards, it is helpful to understand the difference between accessibility and adaptability. Which description best describes Adaptability in the ANSI Standards.

A) The placement of building elements and structure to allow a disabled person to adapt to their environment.
B) The building, site, facility or portion thereof that can be approached, entered by physically disabled people.
C) Flexibility of certain building elements, such as kitchen counters, sinks and grab bars to be modified to accommodate the needs of people with different types or degrees of disability
D) Variability in respect to, or under the influence of, external conditions; susceptibility of a space whereby it becomes suited to or fitted for its conditions for a disabled person.