A logistics company uses a two-factor system to evaluate potential delivery routes: 'Travel Time' (in hours) and 'Fuel Consumption' (in liters). They have four available routes for a specific delivery, with the following characteristics: * **Route 1:** Travel Time 5 hours, Fuel Consumption 25 liters * **Route 2:** Travel Time 6 hours, Fuel Consumption 20 liters * **Route 3:** Travel Time 4 hours, Fuel Consumption 30 liters * **Route 4:** Travel Time 7 hours, Fuel Consumption 18 liters If the company's primary goal is to minimize fuel consumption, and secondary goal is to minimize travel time among routes with the lowest fuel consumption, which route should be selected?
✓ Correct Answer: Option D
First, minimize fuel consumption: Route 4 has the lowest at 18 liters. Next, check its travel time. Since it's unique in lowest fuel, Route 4 is selected regardless of its travel time relative to others.