Assume The Graph Shown Represents The Market For Pizzas Sold In An Hour If The Origi 3439973

Assume the graph shown represents the market for pizzas sold in an hour. If the original equilibrium was D and S1, which of the following could be a reason S1 shifted to S2? Multiple Choice The price of pizza sauce has increased. The price of pizza went down. The price of labor for pizza shops went down. None of these things would cause such a shift.