Does a change in the price in a market result in a shift of the demand curve or in a movement along the demand curve?

Which of the following will increase the supply of a product?

A) an increase in the price of the product B) an increase in the demand for the product C) an increase in the number of sellers D) a decrease in the demand for the product E) an increase in the price of inputs

If firms and workers have adaptive expectations, what impact will contractionary monetary policy have on inflation, unemployment, and the Phillips curve?

What will be an ideal response?