MNO Ltd. uses throughput accounting in a Theory of Constraints (TOC) environment. The company has three product lines with the following data: Product M: Selling price ₹500, raw material cost ₹200, processing time at bottleneck 2 hours. Product N: Selling price ₹400, raw material cost ₹150, processing time 1.5 hours. Product O: Selling price ₹600, raw material cost ₹250, processing time 3 hours. Bottleneck capacity = 500 hours/month. Which product should be prioritized, and what is the maximum monthly throughput contribution?