Given the question: Information: - The Council of Trent, held between 1545 and 1563 in Trento (Trent) and Bologna, northern Italy, was one of the Roman Catholic Church's most important ecumenical councils. Prompted by the Protestant Reformation, it has been described as the embodiment of the Counter-Reformation. Four hundred years later, when Pope John XXIII initiated preparations for the Second Vatican Council (Vatican II), he affirmed the decrees it had issued: "What was, still is." - The Catholic Church, also known as the Roman Catholic Church, is the largest Christian church, with more than 1.27billion members worldwide. As one of the oldest religious institutions in the world, it has played a prominent role in the history of Western civilisation. Headed by the Bishop of Rome, known as the pope, its doctrines are summarised in the Nicene Creed. The Catholic Church is notable within Western Christianity for its sacred tradition and seven sacraments. - The city of Bern or Berne (; Bernese German: "Barn" ) is the de facto capital of Switzerland, referred to by the Swiss as their (e.g. in German) "Bundesstadt," or "federal city". With a population of 141,762 (November 2016), Bern is the fourth most populous city in Switzerland. The Bern agglomeration, which includes 36 municipalities, had a population of 406,900 in 2014. The metropolitan area had a population of 660,000 in 2000. Bern is also the capital of the canton of Bern, the second most populous of Switzerland's cantons. - The Christian Catholic Church of Switzerland is the Swiss member church of the Union of Utrecht of Old Catholic Churches . The Union of Utrecht was originally founded by some Jansenists with a later influx of discontented Roman Catholics following their disappointment with the First Vatican Council ( 1869 - 1870 ) . The church is a national Swiss church and recognised ( as are the Evangelical Reformed and the Roman Catholic churches ) in 11 cantons by the government . Since 1874 , the University of Bern has had its own Christian Catholic theological faculty , which is now one part ( as the Christian Catholic section ) of the Faculty of Theology . The strongest concentration of Christian Catholics lies in the cantons of Solothurn , Aargau , Zurich and Geneva . In 1841 the Zurich Catholic community planned to build a church to commemorate the 1270s Augustinian abbey church . As the whole community was expelled from the Catholic church , the Augustinerkirche at the Munzplatz became its present parish church . Ferdinand Stadler ( 1813 -- 1870 ) , an architect born in Zurich , was charged with the construction of a new church building . In 2009 , Bishop Harald Rein was elected to be head of the church . Prior to this , he served as a parish priest and as vicar general of the church . On September 12 , 2009 , he was consecrated in Zurich by Archbishop Joris Vercammen of Utrecht . - The term Old Catholic Church was originally used from the 1850s by groups, which separated from the Roman Catholic Church over certain doctrines, primarily concerned with papal authority. These churches are not in full communion with the Roman Catholic Church; however member churches of the Union of Utrecht of the Old Catholic Churches (UU) are in full communion with the Anglican Communion; and some are members of the World Council of Churches. - Rome is a city and special "comune" (named "Roma Capitale") in Italy. Rome is the capital of Italy and of the Lazio region. With 2,870,336 residents in , it is also the country's largest and most populated "comune" and fourth-most populous city in the European Union by population within city limits. The Metropolitan City of Rome has a population of 4.3million residents. The city is located in the central-western portion of the Italian Peninsula, within Lazio (Latium), along the shores of Tiber river. The Vatican City is an independent country geographically located within the city boundaries of Rome, the only existing example of a country within a city: for this reason Rome has been often defined as capital of two states. - Pope Pius IX (13 May 1792 7 February 1878), born Giovanni Maria Mastai-Ferretti, reigned as Pope from 16 June 1846 to his death in 1878. He was the longest-reigning elected pope in the history of the Catholic Church, serving for over 31 years. During his pontificate, Pius IX convened the First Vatican Council (186970), which decreed papal infallibility, but the council was cut short due to the loss of the Papal States. - The University of Bern is a university in the Swiss capital of Bern and was founded in 1834. It is regulated and financed by the Canton of Bern. It is a comprehensive university offering a broad choice of courses and programs in eight faculties and some 150 institutes. With around 17,428 students, the University of Bern is the third biggest University in Switzerland. - The Vatican Council was convoked by Pope Pius IX on 29 June 1868, after a period of planning and preparation that began on 6 December 1864. This, the twentieth ecumenical council of the Catholic Church, held three centuries after the Council of Trent, opened on 8 December 1869 and adjourned on 20 October 1870. Unlike the five earlier General Councils held in Rome, which met in the Lateran Basilica and are known as Lateran Councils, it met in the Vatican Basilica, hence its name. Its best-known decision is its definition of papal infallibility, strongly promoted by the Archbishop Luigi Natoli. - Papal infallibility is a dogma of the Catholic Church that states that, in virtue of the promise of Jesus to Peter, the Pope is preserved from the possibility of error "when, in the exercise of his office as shepherd and teacher of all Christians, in virtue of his supreme apostolic authority, he defines a doctrine concerning faith or morals to be held by the whole Church." After reading the paragraphs above, we are interested in knowing the entity with which 'christian catholic church of switzerland' exhibits the relationship of 'member of'. Find the answer from the choices below. Choices: - 3 - catholic church - death - s - world council of churches
The answer is:
world council of churches