A, C D those are correct i think
Answer: Federalism: A system in which power is divided between the national and state governments.
Explanation:
Based on the conditions above, the condition that the
soldier contract from fighting in trenches in the World War I is the trench
foot which is letter d. This is a medical condition in which soldiers from the World
War I suffered, this is where the feet has exposed in a prolong period time in
an unsanitary, cold and damp conditions that causes the surface of the tissue
to blacken and die.