Which of these actions is forbidden by the Constitution?

creating a law ex post factor
borrowing money from the government
passing “necessary and proper” laws
regulating trade with foreign countries

Bill of Attainder

Explanation:

A legislative act that declares the guilt of an individual and doles out punishment without a judicial trial. The state legislatures and Congress are forbidden by Article 1, sections 9 and 10 of the Constitution to pass such acts. This is an important ingredient of the separation of powers.

answer; the civil right act of 1964;

we need an attachment to see what you are talking about.