Can someone plz help me? :(

Which explorer travel the farthest south in his journey

Which act of the conquistador pizarro was crucial in overthrowing the inca? a. the destruction of the ancient inca city, machu picchu b. the siege of the inca capital near the cuzco valley c. the execution of the last inca ruler, atahualpa d. the unexpected deaths of 3 million inca warriors e. the murder of former inca emperor, huascar

Which side was right? write a paragraph in which you explain which side made a stronger argument and why. remember to use evidence from the lesson and from primary source documents you have read.