Answer:
B. The price is likely to decrease because supply has increased.
Step-by-step explanation:
A new source of lumber represents increased supply. According to the laws of supply and demand, an increase in supply leads to a decrease in prices.
The current market price is the equilibrium price. It is the price that buyers are willing to pay for the quantity that suppliers are offering in the market. In other words, It is the meeting point between the supply and demand-sides in the market. A new source of lumber will increase the supply side, resulting in the curve shift in the supply curve. A new equilibrium with a lower price will be formed in the market.