Final answer:
The student's question involves a cost analysis to determine the most cost-effective supplier of wafers between Source A and Source B, factoring in Source B's bulk discount.
Step-by-step explanation:
The student has asked a problem related to decision-making in purchasing and involves analyzing the cost-effectiveness of buying options from different sources. With Source B adjusting its pricing policy to $2.55 per wafer for orders up to 3,000 units and a discounted price of $2.25 for additional wafers over this threshold, and Source A maintaining the same pricing as in the original problem, the student must calculate the total cost for a given number of wafers to determine which source offers the best deal.
Since Source C is no longer an option, the decision will be between Source A and Source B. The solution requires the student to perform a cost analysis based on unit prices and total quantities, considering the discounted price offered by Source B for larger orders.