Who is prohibited from possessing firearms in Indiana?

In Indiana, individuals who have been convicted of a felony, convicted of domestic violence, and those who have been adjudicated as mentally defective are all prohibited from possessing firearms. This means that all of the choices listed in the question are correct, and individuals who fall into any of these categories are not legally allowed to possess firearms in the state of Indiana. It is important to note that this list is not exhaustive and there may be other individuals who are also prohibited from possessing firearms in Indiana.