challenge: What is the current conservation status of the Cloud-dwelling spiny pocket mouse (H. nubicolens)?
  
  A. It is listed as Vulnerable on the IUCN Red List
  B. It is listed as Critically Endangered on the IUCN Red List
  C. It is listed as Endangered on the IUCN Red List
  D. It does not require any species conservation protection, but more research is needed
  Answer: 