As Discussed in the Case in Point on Arab Spring

As discussed in the Case in Point on Arab spring and oil markets, the regime changes in Tunisia, Egypt, and Libya through 2011 resulted in:

A) an increase in the demand for oil and an increase in price.
B) a decrease in the demand for oil and a decrease in price.
C) an increase in the supply of oil and a decrease in price.
D) a decrease in the supply of oil and an increase in price.