challenge: What event in July 2014 is considered by Israeli news sources to be the starting point of the latest intifada?
  
  A. The murder of Mohammed Abu Khdeir by Jewish extremists
  B. The kidnapping and murder of three Israeli teenagers
  C. The beginning of Israel's Operation Protective Edge on the Gaza Strip
  D. The violent confrontation between protesters and Israeli border guards near the Qalandiya checkpoint
  Answer: 