Answer:
Explanation:
In Europe, American combat troops would encounter new weapons systems, including sophisticated machine guns and the newly invented tank, both used widely during World War I. American forces had to learn to fight with these new technologies, even as they brought millions of men to bolster the decimated British and French armies.
the answer is B) the right of Congress to judge the constitutionality of laws made by Congress. Its also know as Judicial review , Hope it helps