Answer:
C. Article III
Step-by-step explanation:
The excerpt is the first sentence in Article III of the US constitution.
This article is dedicated to the establishment of power for the judicial branch of the national federal government. It explains that this branch shall consist of the Supreme Court of the United States as the highest one with ultimate power and the lower courts that Congress establishes.
We also read in the expert the way the constitution states judges have to behave. They should act independently and in accordance with the law, with no influence from the higher powers of the government.