challenge: What was the response of the National Weather Service as Typhoon Dianmu approached the islands of Yap and Palau?
  
  A. They issued advisories, but only for Yap
  B. They began issuing advisories, but later discontinued them on June 13
  C. They did not issue any advisories
  D. They began issuing advisories, which were later discontinued on June 14
  Answer: 