How does paragraph 19 refine the speaker’s claim that the United States must act? Paragraph 19 contrasts the terrible state of Vietnam with the peace enjoyed by the rest of the world.

Paragraph 19 contrasts the terrible state of Vietnam with the peace enjoyed by the rest of the world.

Paragraph 19 describes the founding principles of the country that guide its decisions today.

Paragraph 19 describes the founding principles of the country that guide its decisions today.

Paragraph 19 foreshadows the potential problems that would arise if the United States does nothing.

Paragraph 19 foreshadows the potential problems that would arise if the United States does nothing.

Paragraph 19 summarizes the primary objectives of entering the ongoing conflict in Vietnam.