Exhibit 4-5 -Refer to the Exhibit.Which of the Following Could Cause a Following

Exhibit 4-5

-Refer to the exhibit.Which of the following could cause a shift from supply curve S to supply curve S'?  

A)  a decrease in consumer income 
B)  an increase in the current price of the product 
C)  a patent application that restricts the use of a particular production technology 
D)  a supplier expecting higher product prices in the future