Answer:
quota
Explanation:
China would most likely prefer an allocation, rather than a flow, in this case. Especially in comparison with a quota, traffic to local consumers will yield stronger economic performance.
Traffic should better prevent domestic companies and raise government income that can be used to cut taxes or fund government goods and services. A quota boosts rates, and the domestic country does not earn additional revenue. The international producers would benefit from the quota.
Therefore the correct answer is the quota.