Answer:
D. Americans faced severe shortages of gasoline
Explanation:
The effect of the Arab oil embargo in 1973 was that "Americans faced severe shortages of gasoline."
The above statement is accurate because it was during this period the OPEC consisting of 12 countries that are significant suppliers of Oil to the world, decided no to export oil to the United States.
The ban led to an increase in oil prices in the United States. This resulted from a severe shortage of gasoline caused by an inability to import oil from OPEC.
