Exam DY0-001 topic 1 question 81 discussion

Given these business requirements:
Needs to most efficiently move 3,000 boxes across a river
Has one boat that holds eight boxes, travels at ten nautical miles per hour, and has a fuel economy of six nautical miles per gallon
Has another boat that holds two boxes, travels at 50 nautical miles per hour, and has a fuel economy of 18 nautical miles per gallon
The river is one nautical mile wide
The data scientist only has access to 125 gallons of fuel
Which of the following is the most likely optimization technique a data scientist would apply?