challenge: What is the origin of the name 'Wujicaris'?
  
  A. A combination of the Latin words for 'ancient' and 'crab'
  B. A combination of the fossil site and the Greek word for 'lobster'
  C. A combination of the discoverer's name and the Latin word for 'crustacean'
  D. A combination of the town of Wuji and the Latin word for 'shrimp'
  Answer: 