Answer:
C.They supported Constitutional separation of powers.
Step-by-step explanation:
The case of Youngstown Sheet and Tube company vs Sawyer was a milestone when it comes to separation of powers and limiting the power of the executive by the supreme court, the Supreme court made the decision to limit the ability of the President of the United States to seize private property without consent from the congress, after this ruling the president has had to ask permission to the congress when it comes to seizing private property no matter for what does the country need it.