PLEASE HELP ANSWER NEEDED ASAP Read this excerpt from the US Constitution. Which portion of the text is an example of separation of powers?
(I put the options in brackets [ ])
We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, [provide for the common defence, promote the general Welfare,] and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution for the United States of America.

Article. I.
Section. 1.
All [legislative Powers herein granted shall be vested in a Congress of the United States, which shall consist of a Senate and House of Representatives.]
…
Amendment I
Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or [the right of the people peaceably to assemble,] and to petition the Government for a redress of grievances.