Why Was the Phrase "We the People of the United

Why was the phrase "We the people of the United States" in the new Constitution?

A) It was there to exclude women and African Americans from the rights described in the document.
B) The phrase recalled the Declaration of Independence and would help Americans approve the document.
C) The other delegates voted unanimously on the phrase, thinking it would help ensure ratification.
D) It was there to include women and African Americans in the rights described in the document.
E) It was there to avoid mention of the states because of uncertainty about how many and which states would ratify the document.