Question 2:

In the mid 19th century a blight afflicted the potato crop in Ireland. This would have caused

1. the supply curve for potatoes in Ireland to shift to the left.

2. the supply curve for potatoes in Ireland to become upward sloping rather than horizontal.

3. the supply curve for potatoes in Ireland to become flatter.

4. both 1 and 2 above to occur.

Choose the option that yields the correct answer.