Answer:
B. Referendum this is the correct answer
The correct answer is Philippe Pinel. He was important because he pioneered a more humane approach to treating mental disorders and was among the first people to classify them and find evidence of things such as schizophrenia or dementia. Many consider him to be the father of modern psychiatry.
The phenomenon of logrolling occurs when two members of congress conflicts in their interests, however, support each other's bills. Furthermore, the principle is commonly used in the Congress and is named to a sport. It is also called "trading of favours" or "quid pro quo."
Religious freedom is the answer.