(Figure: Shift in Supply 2) Use the Figure to Answer

(Figure: Shift in Supply 2) Use the figure to answer the question.
Which of the following market changes would lead to a shift of the supply curve from Old supply to New supply?

A) An increase in production efficiency
B) An increase in the number of sellers for the product
C) An increase in the price of an input used in production
D) Fewer consumers in the market