which form of transportation has led to more efficient business in a global market?\no helicopters\no high…

Brief Explanations:

Cargo ships can carry large - volume goods across long - distance international routes at a relatively low cost per unit of cargo, which is crucial for global business efficiency. Helicopters are mainly for short - distance or specialized transport, high - speed trains are more for domestic or regional travel, and tractor trailers are for land - based regional transport.

Answer:

D. cargo ships