Question

The highest commercially navigable lake in the world.. What does this mean? (I need a answer quick!)

Answer 1

Lake titicaca located in the Andes mountains is correct

Answer 2

Lake Titicaca, on the border of Peru and Bolivia

Step-by-step explanation:

This lake is at very high altitude. "Commercially navigable" means can be navigated/sailed/traveled by boats for commercial/business purposes.