What is the non-hygroscopic cargoes ?

A
Non-hygroscopic cargoes contain moisture, mostly in natural form; for instance, agricultural, fish and forest cargoes.
B
Non-hygroscopic cargoes contain no moisture; for example, steel.
C
Non-hygroscopic cargoes contain moisture, mostly in artificial form; for instance, minerals.
D
Non-hygroscopic cargoes contain a little moisture; for example, seeds and soil.
E