Answer :

Final answer:

The upper house in Congress is known as the Senate, playing a key role in the legislative process.


Explanation:

The upper house is also referred to as the Senate in Congress. The Senate is part of a bicameral legislature alongside the House of Representatives, with 100 senators responsible for representing each state equally.


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Answer: C. Senate

Explanation:

The upper house is also referred to as the Senate. It is referred to as the upper house as it has fewer members than the House of Representatives and more powers than the House.