In every economy, the information about the relative value of resources in the marketplace are communicated by their prices. Which of the following would cause the value of grapes to rise and, hence, the price of wines to rise in Canada? a. A sudden freeze wipes out half of the Niagara peninsula winyards. b. New research shows evidence of wine consumption in reduction of the chance of heart failure. c. The price of apple cedar, and pineapple juice falls dramatically