Expers

Expert means a person who has a broad knowledge in a specific field, because of their experience and skills they are seen as a credible source. Anyway because they are experts does not mean that they don't make mistakes, they still are human beings and all human beings make mistakes hence we can say that experts are not always right.

I don't agree with what illich argues in Item A, in my opinion what he say is wrong because i consider that housing hygiene, diet are some of the main factors affecting the health population, on the other hand, I think that changing this will not solve the complete problem, maybe it will avoid some illnesses anyway medical establishment is essential for our life. We can't treat society as a whole, sometimes we have to focus in an individual person. This “kind of mistake” could be associated with changing expertise”

In item C “expert” treat a topic of africans slavery, they say that the wiah they have of being free is a desses, when in fact they have the right of doing whatever they like instead of being obeying orders from someone.

In item D happens the same as in C but instead of the black race they talk about gays and take this as a mental dresses, while in fact what they're doing is discriminating.

In conclusion, none of the three cases is right, being an expert and knowing about the topic doesn't mean that you cannot be wrong.