When Nixon refused to withdraw support of Israel, OPEC responded by:
O
A. refusing to sell oil to the United States.
Step-by-step explanation:
Although OPEC had traded with US primarily for oil during that time the diplomatic pressure and the differences due to the support for Israel became too great for them
This resulted in the fact that they with drew from the trade deals with US and the nation was left to fend for itself for its massive oil needs.
It served as a catalyst for more open realizations for trade with neighbor nations and reliance on other sources.
The war had forced US to look for different trade partners.