Answer:
The correct answer is option b.
Explanation:
Warm weather in winter would decrease the need for heating. As natural gas is used for heating purpose, the demand for natural gas will decline. At the same time, an increase in the production will cause the supply of natural gas to increase.
The equilibrium quantity will decrease if the decline in demand is greater than the increase in supply.
If the demand decreases less than the increase in supply, the equilibrium quantity will increase.