challenge: What is the distinction between Makkan Khan's descendants and Shakkar Khan's descendants?
  
  A. Makkan Khan's descendants were dhrupadiyas and Shakkar Khan's descendants were khayaliyas
  B. Makkan Khan's descendants were classical musicians and Shakkar Khan's descendants were folk musicians
  C. Makkan Khan's descendants were khayaliyas and Shakkar Khan's descendants were dhrupadiyas
  D. Makkan Khan's descendants were instrumentalists and Shakkar Khan's descendants were vocalists
  Answer: 