challenge: What is the typical political leaning of the collar counties in comparison to the core city of Chicago?
  
  A. The collar counties and Chicago have no notable difference in political leanings
  B. The collar counties historically tilt Republican, while Chicago is a Democratic stronghold
  C. The collar counties have the same political leanings as Chicago
  D. The collar counties are typically Democratic strongholds, while Chicago leans Republican
  Answer: 