Answer :
Answer:
This is an example of a case that involves the c. establishment clause of the Constitution's First Amendment.
Explanation:
The establishment clause refers to the First Amendment's clause that states the following: Congress shall make no law respecting an establishment of religion. This clause prohibits the U.S. government from establishing an official religion, from giving preference to one religion or promoting one religion over others and from forcing citizens to believe in a religion.
In the example of the case, this clause in involved because schools or public institutions should not be allowed to promote one religion over others, and to give a religious prayer at a school's graduation would be a form of giving preference to one religion over others.