Which of the Following Does NOT Increase the Supply of Personal

Multiple Choice

Which of the following does NOT increase the supply of personal computers,that is,does NOT shift the supply curve of personal computers?

A) an advance in the technology used to produce personal computers
B) an increase in the number of firms producing personal computer
C) a fall in the cost of the components used to assemble personal computers
D) a rise the price of a personal computer
E) a change in the expected future price of a personal computer