challenge: What event triggered the Reggio revolt in July 1970?
  
  A. The choice of Reggio Calabria as the regional capital of Calabria
  B. A natural disaster in the Calabria region
  C. The appointment of Giacomo Mancini as Deputy Prime Minister
  D. The selection of Catanzaro as the regional capital of Calabria over Reggio Calabria
  Answer: 