Which amendment guarantees the freedom of expression through various forms such as religion and speech?

The 1st Amendment is the cornerstone of American civil liberties, specifically safeguarding the freedom of expression. It encompasses various forms of expression including freedom of speech, freedom of the press, and the free exercise of religion. This amendment ensures that individuals can openly express their beliefs and ideas without government interference, which is fundamental to a democratic society.

The other amendments listed do not provide the same broad protections for expression. The 4th Amendment focuses on protecting individuals from unreasonable searches and seizures, thereby ensuring privacy rather than freedom of expression. The 5th Amendment includes rights related to legal proceedings and protection against self-incrimination and double jeopardy, but does not address freedom of speech or expression directly. The 14th Amendment primarily addresses citizenship rights and equal protection under the law, impacting civil rights but not specifically detailing the freedom of expression as the 1st Amendment does.

Therefore, the 1st Amendment is unequivocally the correct choice for guaranteeing the freedom of expression through religion and speech among other forms.