Free exercise clause is the term in law which permits the free exercise of any individual's religion. This right lets a person execute their religion without any intervention of government or party in their way of doing so.
According to the question, prohibiting the religious group of people from purchasing the building on the basis of their faith is example of breaking the free -exercise clause.
Other options are incorrect because weekly prayers by employees and permitting students for religious clothes is not violating the free-exercise clause. Not permitting prayers in city park by religious group is not breaking the clause as it is to be followed by all and is a limitation of clause according to rule.Thus, the correct option is option(d).
