Which of the following wars was not fought by the united states in the 1900s. a) world war 1
b) Korean war
c) Spanish-American war
d) Vietnam

it’s C

Explanation:all where fought in 1900s on Spanish American war was in late 1800s

Hope this helps

c

explanation:

congress also has implied powers, which derive from the necessary and proper clause of the constitution and permit congress "to make all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states.