Read the following excerpts from the United States Constitution and answer the question below.
Article 1, 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.
Article 2, Section 1
The executive power shall be vested in a President of the United States of
America. He shall hold his office during the term of four years, and together with
the Vice President, chosen for the same term..
Article 3, Section 1
The judicial power of the United States, shall be vested in one Supreme Court, and
in such inferior courts as the Congress may from time to time ordain and
establish. The judges, bot of the supreme and inferior course, shall, hold their
Offices during good behaviour, and shall, at stated times, receive for their services,
a compensation, which shall not be diminished during their continuance in Office.

Which constitutional principle is described by the excerpts?

A) limited government
B) separation of powers
C) checks and balances