Marbury V Madison Had Both Legal and Political Significance

Marbury v. Madison had both legal and political significance. Which of the following rulings was of political significance?

A) Congress may not add to the original jurisdiction of the Supreme Court.
B) The Supreme Court may declare void any laws repugnant to the U.S. Constitution.
C) Persons seeking writs of mandamus must go to a lower court.
D) The Supreme Court will try to avoid direct confrontations with other branches of government.
E) Congress can expand or contract the appellate jurisdiction of the Court.