Answer:
Disability discrimination.
Step-by-step explanation:
Disability discrimination is when an employer discriminates against an individual that has a disability and acts unfavourably towards a candidate because of the disability.
There should not be any pre-employment test that will screen out candidates because of a disability.
Tests should be designed in such a way that only job related skills are tested. In this instance firefighter recruitment requires candidates to carry a 100 pound sack down a ladder, and this is used for screening.
If it cannot be proven that the test is relevant to the job, then this will be a discrimination of disabled persons.