challenge: What was the reported impact of the 2007 African floods on the human population?
  
  A. 100 people were killed and 500,000 were affected
  B. 500 people were killed and 1 million were affected
  C. 250 people were killed and 1.5 million were impacted
  D. 1000 people were killed and 2 million were affected
  Answer: 