Which president had a very short term in office because he was assassinated by a man with mental problems? he began his career as a school principal and later became a congressman. a. james garfield b. chester arthur c. ulysses grant d. william mckinley

yup! you are correct it is b.

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.