Answer:
Elected (?)
Step-by-step explanation:
Until the ratification of the 17th Amendment in 1913, Senators were chosen by state legislatures, not by popular vote. Since then, they have been elected to six-year terms by the people of each state.
As of now senators are elected, and here it says congress is also:
Are members of the Congress House elected or appointed?
The House is the only branch of government that has been directly elected by American voters since its formation in 1789.
hope that explanation is helpful!