What does it mean to have a workplace that is free from procedural barriers?

Question $7$ options:

a$)$

It means that workers cannot be discriminated against for religious practices, beliefs and observances.

b$)$

It means that the physical space of a workplace does not exclude employees from accessing areas such as office space, meeting rooms, washrooms, and common areas.

c$)$

It means that the workplace is free of attitudes, policies, practices, assumptions, and beliefs that discriminate against persons with disabilities.

d$)$

It means that a workplace is free from bullying language or behaviour of a sexual nature that is unwanted and unwelcome.