Answer:
The correct answer is option b.
Step-by-step explanation:
Mathew bakes and sells apple pies. Apple here is used as an input. If the price of apple increases, it means the cost of producing apple pies is increasing as well.
At the given cost the firm will be able to produce fewer apple pies. This will cause a reduction in the supply of apple pies. Consequently, the supply curve will shift to the left.