选择题：Developing countries often rank low on the LPI because logistics expenditures as a percentage of GDP are usually higher. What does “logistics” mean in this sentence?

Developing countries often rank low on the LPI because logistics expenditures as a percentage of GDP are usually higher. What does “logistics” mean in this sentence?

A.GDP

B.An operation that involves providing labor and materials be supplied as needed.

C.Low rank on the LPI

D.the power of AI