Answer:
c
Explanation:
Lower Interest Rates. ...
Give Tax Incentives. ...
Friendly Trade Policies. ...
Providing Contract Work to Private Companies. ...
Grants, Loans and Disbursements.
these are what can encourage it, so i believe it is C.
Congress cannot set political conditions on states.
I believe that one main reason why is 1. Woodrow Wilson (Who was a democrat) he believed that he did not need to bring anyone from the Senate, which was a Republican :) (I hope this helps! I read this from the internet, I was gonna post it to you but I dont know if its against the rules of Brainly :) If not let me know, and ill send the link)