Which of the following is not a type of stigma?  ( a) stigma attached to a particular race, religion, ethnicity etc

(b) stigma associated with mental illness

(c) stigma attached to hair

(d) stigma associated with physical deformation​

I think it’s A Explanation: the main type of stigma is Public Stigma and it’s what people see; like how you look (appearance) so physical deformation, and hair are Public Stigma. Even though Public Stigma is the main type, it’s broken down into three categories; and one of them is a mental illness. So your best option is A