The correct answer is B) give off fumes that may damage other cargoes. Odorous cargoes are those that emit fumes or vapors that can potentially damage or contaminate other cargoes being transported in the same vessel. These fumes and vapors can interact with and negatively impact the quality or integrity of other, more sensitive cargo. This is the key defining characteristic of odorous cargoes as specified in regulations and guidance for US Coast Guard Captain's License Examinations. The other options are incorrect because they do not accurately capture the essential nature of odorous cargoes. Option A refers to cargo susceptibility to damage, option C refers to the physical state of the cargo, and option D describes dusty cargo, none of which are the defining feature of odorous cargoes.