The statement that is TRUE of costs is: They may be intangible.
Costs can include both tangible and intangible elements. Tangible costs are directly measurable and can be quantified easily, such as materials and labor. Intangible costs, on the other hand, may include things like lost opportunities, brand reputation damage, or employee dissatisfaction, which are not easily measurable but still have an impact on the overall cost of a decision or project.