Final answer:
When the price of beef decreases, the quantity of pork supplied will increase.
Step-by-step explanation:
When the price of beef decreases, it becomes less expensive and more attractive to consumers. As a result, the demand for beef increases. However, assuming that farmers can easily switch between beef and pork production, they will likely decrease the supply of beef and increase the supply of pork in response to the change in price. This means that the quantity of pork supplied will increase.
Therefore, the correct answer is: quantity of pork supplied to increase.