Short answers, pulled from the story.
Argentina won the 1978 FIFA World Cup, defeating the Netherlands 3-1 in the final after extra time at Estadio Monumental in Buenos Aires. It was Argentina's first World Cup title, making them the fifth team in history to win the tournament as the host nation.
Mario Kempes was the top scorer at the 1978 FIFA World Cup, finishing with six goals. He was also recognised by journalists and experts as the best player of the tournament.
Johan Cruyff refused to play in the 1978 World Cup because his family had been the victims of a kidnapping attempt in Barcelona several months before the tournament. Criminals broke into his home at night and held him and his family at gunpoint. He denied for thirty years that the decision was political, and later disclosed the real reason.
Argentina beat Peru 6-0 in the second round after needing exactly a four-goal margin to reach the final. Accusations included a grain shipment deal, the unfreezing of Peruvian bank accounts held by Argentina's Central Bank, and the return of Peruvian dissidents exiled in Argentina. No conclusive proof of any arrangement has been established, and Peruvian captain Héctor Chumpitaz and several players denied all allegations.
The 1978 World Cup was held under a military dictatorship that had seized power in 1976 and was responsible for the disappearance and murder of tens of thousands of people. The junta spent more than ten times the original projected budget on the tournament as a propaganda exercise. The Higher School of Mechanics of the Navy, a secret detention and torture center, operated less than a mile from the Monumental stadium where the final was played.
Argentine manager César Luis Menotti left Maradona out of the 1978 squad because he judged the then-17-year-old too young to handle the pressure of a home World Cup. Menotti also noted that Maradona's position, the number 10 attacking midfield role, was occupied by Mario Kempes, who went on to be the tournament's top scorer and best player.