Here is a single or multi-choice question: What country 's national passenger rail system is called Via ?

Would the answer to this question be an entity, an abbreviation, a description, a human, a location, or a numeric value?

OPTIONS:
 (a). description.
 (b). entity.
 (c). abbreviation.
 (d). human.
 (e). numeric.
 (f). location.
(f).