Final answer:
If Ashley purchases a new convection oven that reduces the costs of baking bread, it would lead to an increase in the supply of Ashley's bread.
Step-by-step explanation:
If Ashley purchases a new convection oven that reduces the costs of baking bread, it would lead to a reduction in the cost of production for her. This reduction in costs would cause an increase in the supply of Ashley's bread. Therefore, the correct answer is c. supply curve for Ashley’s bread will increase.