Which is not a duty of a member of congress?

voting for a bill or proposed law

creating and proposing legislation

serving on a committee

declaring a law unconstitutional

declaring a law unconstitutional

Explanation:

The role of congress members is to create laws and oversee the executive. In turn, the role of the judiciary is to monitor whether the constitution is being obeyed and, therefore, to analyze the constitutionality of the laws formulated by congressmen. Thus, it is for the supreme court to consider whether the laws are constitutional or exceed the limits imposed by the constitution.

the above statement/question is (true);