Answer: Quota
Explanation:
Quotas are a way of limiting the imports that a country receives. It works by placing a limit on the amount of a certain good coming into the country within a certain period of time. After the required quantity is reached, the country stops imports of that good until the next period.
The United States learnt a sharp lesson in oil dependence when in 973, Arab countries placed an embargo on the United States for supporting Israel and this caused economic crises.
Placing a quota on the amount of oil it can get from Saudi Arabia will help it reduce the chances of such an event occurring again.
