Which of the following parts of the First Amendment is most closely associated with the phrase "separation of church and state"?

A. the establishment clause
B. the freedom of the press
C. the free exercise clause
D. the freedom of speech

A. the establishment clause

The part of the First Amendment most closely associated with the phrase "separation of church and state" is A. the establishment clause.

The phrase "separation of church and state" is most closely associated with A. the establishment clause of the First Amendment.

To arrive at this answer, we need to understand the parts of the First Amendment and their implications:

A. The establishment clause states that "Congress shall make no law respecting an establishment of religion." This means that the government cannot establish an official religion or show preference to one religion over others. The concept of separating church and state stems from this clause.

B. Freedom of the press refers to the right to publish and express information without government interference. While it is an important part of the First Amendment, it is not directly related to the phrase "separation of church and state."

C. The free exercise clause guarantees that individuals have the right to freely exercise their religion without government interference. While it relates to religious freedom, it does not directly address the separation of church and state.

D. Freedom of speech ensures that individuals have the right to express their opinions and ideas freely without government censorship. While it is a fundamental right protected by the First Amendment, it is not directly tied to the phrase "separation of church and state."

Therefore, the part of the First Amendment most closely associated with the phrase "separation of church and state" is the establishment clause (A).