Aperson who was born with a mental disability and cannot perform some of the functions required by everyday life is considered to have which of the following?
a. impairment
b. participation restriction
c. activity limitation
d. all of the above

The answer would be D, all of the above. People with disabilities have impairments, meaning they can't do certain things. This means the same thing as participation restriction and activity limitation. An example would be that someone in a wheelchair would not be able to participate in certain events like running.