Which of the Following Leads to a Movement Along the Supply

Multiple Choice

Which of the following leads to a movement along the supply curve for shredded wheat but does not shift the supply curve for shredded wheat?

A) perfect weather conditions that resulted in a large wheat crop
B) A fall in the price of shredded wheat.
C) an increase in the cost of machinery used to shred wheat
D) a decrease in the number of shredded wheat producers