What is included in the ADA's definition of discrimination against individuals with disabilities?

The Americans with Disabilities Act (ADA) defines discrimination against individuals with disabilities in various forms, primarily focusing on ensuring equal employment opportunities. The correct choice, which refers to the refusal to hire qualified individuals due to their disability, aligns directly with the core intent of the ADA. The Act aims to protect individuals from being unfairly treated in the hiring process based solely on their disabilities, especially when they possess the necessary qualifications for the job.

The other options pertain to practices that may not directly reflect discrimination in the context of the ADA. For instance, strict adherence to hiring norms does not inherently signify discrimination; rather, norms can be designed to ensure fairness within the framework of the law. Similarly, prohibiting adjustments to job roles or limiting job responsibilities reflects an operational aspect of employment but does not specifically denote discrimination unless it directly relates to an individual's inability to perform essential job functions with reasonable accommodations. Thus, the refusal to hire qualified individuals due to disability is a clear manifestation of discrimination as defined by the ADA.