Julio Diego Ibarra Maldonado (born July 15, 1966) is a Chilean politician.
 Ibarra was the Governor of Cardenal Caro Province since he was appointed by President of Chile Sebastián Piñera on March 16, 2010.
 He left office on March 12, 2014.
José Lino Vargas Jorquera (born 6 March 1930) is a Chilean politician.
 He was the 33rd Mayor of the commune of Pichilemu, office which he held between 1979 and 1981, after being appointed by the government junta presided by General Augusto Pinochet.
 The Cardenal Caro Province, of which Pichilemu is the capital, was created during Vargas' term as mayor.
 He also was a founding member of the Club Aéreo de Pichilemu (Aerial Club of Pichilemu); Vargas is an experienced pilot.
Miguel Juan Sebastián Piñera Echenique (] ; born December 1, 1949), more commonly known as Sebastián Piñera, is a Chilean politician and businessman.
 He was President of Chile between 2010 and 2014.
Colchagua Province (Spanish: "Provincia de Colchagua" ) is one of three provinces of the central Chilean region of O'Higgins (VI).
 Its capital is San Fernando.
 It is bordered on the north by Cachapoal Province, on the east by the Argentine Republic, on the south by Curicó Province, and on the west by Cardenal Caro Province.
The Governor of Cardenal Caro Province is the appointed head of government of the provincial government in Cardenal Caro Province, Chile.
 The governor is designated by the President.
Liceo Agustín Ross Edwards (English: Agustín Ross Edwards High School ) is a Chilean public (municipal) high school located in Pichilemu, Cardenal Caro Province.
 It is named after Agustín Ross Edwards, a Chilean politician and known for building the historic centre of the town of Pichilemu.
Instituto Cardenal Caro (English: Cardenal Caro Institute ), officially recognized as Liceo Municipal Instituto Cardenal Caro, is a Chilean high school located in Marchigüe, Cardenal Caro Province, Chile.
There are sixty-six schools in Cardenal Caro , one of the three provinces of Libertador General Bernardo O'Higgins Region in Chile.
 The province contains several primary schools and eight secondary schools.
 All schools in Cardenal Caro are municipal (owned by the government of their respective communes) except seven, including the Colegio de la Preciosa Sangre de Pichilemu and the Colegio Charly's School , which are semi-private (subsidized by the state).
 Forty-six schools are located in rural areas, while the remaining twenty are located in urban areas.
 All of them are coeducational.
Cardenal Caro Province (Spanish: "Provincia Cardenal Caro" ) is one of the three provinces of the central Chilean region of O'Higgins (VI).
 The capital of Cardenal Caro is Pichilemu.
Teresa Mercedes del Carmen Núñez Cornejo (born 10 September 1965) is a Chilean public administrator and politician.
 Núñez is the Governor of Cardenal Caro Province since 2014.

Question: Which Chilean politician and businessman appointed Julio Ibarra as the Governor of Cardenal Caro Province?
Answer: Sebastián Piñera