First Amendment Assures the people the right to practice any religion the choose through the clause of A. The free exercise clause
Explanation:
The first amendment of the constitution is basically the amendment that guarantees the freedom that is given to the citizen of the country in face of the law.
This freedom includes all the clauses given in the question.
More specifically, the clause that guarantees the free participation of all religions i guaranteed by the free exercise clause which guarantees that people could practice and profess any faith unless their beliefs are specifically aimed at the harm of the others around them.