Answer:
The answer is "Constitutional under the privileges and immunities clause".
Explanation:
In Article IV, 2 of the constitution, a Privileges and Protections clause states that "Every State's citizens shall have right towards any privileges and immunities of a citizen of the numerous Participating Countries." The above provision safeguards individual citizens' fundamental rights and hinders Governmental discriminatory initiatives.
The US didn't open a trade route until after the Revolutionary War because if they did then they wouldn't have a relationship between China and the US.
Merits and demerits is that merits are the strengths of anything be it a policy,law, agreement, action. They show what benefits it has and how it can be gainfully used. Demerits on the other hand are the weaknesses of anything.