Which One of the Following Would Not Shift the Supply

Multiple Choice

Which one of the following would not shift the supply curve of good X to the right?

A) a fall in the price of the factors of production used in producing X
B) an improvement in technology used in the production of X
C) a rise in the price of X
D) an increase in the price of Y, a complement in production of X
E) a fall in the price of Y, a substitute in production of X