Answer:
a quota
Step-by-step explanation:
The quota is the type of the restriction made in the trade where the physical limit is set on the quantity of the products or goods that could be imported in a country under a prescribed period of time. It benefits the producers of goods
Therefore as per the given situation, since the Japan government sets a limit for the rice amount that can be imported from the United states so this represents the quota
Therefore the first option is correct