Which of these actions is forbidden by the constitution? creating a law ex post facto borrowing money from the government passing ""necessary and proper"" laws regulating trade with foreign countries

The correct answer on Edgen is:

(A.) creating a law ex post facto

I took the test and this is the right answer.

georgians assisted in financing united states war effort during world war i through both of the following options:

they bought war bonds from the government.

and

they gave food through the creation of victory/liberty gardens.