The supreme court serves what important function in the us federal government?

The correct answer is A

Explanation:

The Supreme Court has a special role in the United States system of government because it is in charge of of judicial review. It means that the Sipreme Court ensures that each branch of government, the President and Congress, respects the limits of its own power. That is the reason why it establishes legal precedents and the lower courts usually follow them.

c) troops march forward in close formation against newer, more accurate weapons

your answer will most likely be a.