The "necessary and proper clause", which gives congress broad power in lawmaking, is also known as the a. due process clause c. elastic clause b. establishment clause d. free exercise clause

The answer is (C) elastic clause.

The clause states: Congress has the power "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, or any Department or Officer thereof" (source: https://www.law.cornell.edu/wex/necessary_and_proper_clause)

In regular English, this essentially states that Congress can create any law as long as it benefits the U.S. and is justified.

It is dubbed "elastic" because the "necessary and proper clause" is very bendable, as almost anything can be justified as "necessary and proper."

Hope this helps :)