I think that maybe people are saying different answers because there might have been many such laws. I will mention one example: the Diversity Visa Immigration: it means that people from Eastern Europe have a higher change of obtaining a visa due to a smaller population in the US than the western European Countries.
Answer: c
Explanation: I just took it
It called for protection of equal privileges for all countries trading with China and for the support of Chinese territorial and administrative integrity
It allowed indentured servants to vote after spending one year in the colony.
