Please answer the following question: Information: - Islam (' ;) is a religion articulated by the Quran, a text considered by its adherents to be the verbatim word of God ('), and, for the vast majority of adherents, the teachings and normative example (called the "sunnah", composed of accounts called "hadith") of Muhammad (5708 June 632 CE). It is the world's second-largest religion and the fastest-growing major religion in the world, with over 1.7 billion followers or 23% of the global population, known as Muslims. Islam is an Abrahamic monotheistic religion that upholds that God is one and incomparable and that the purpose of existence is to worship God. Muslims consider Muhammad to be the last prophet of God. - Sancho III ( 1134 -- 31 August 1158 ) was King of Castile and Toledo for one year , from 1157 to 1158 . During the Reconquista , in which he took an active part , he founded the Order of Calatrava . He was called el Deseado ( the Desired ) due to his position as the first child of his parents , born after eight years of childless marriage . - A papal bull is a particular type of public decree, letters patent, or charter issued by a pope of the Roman Catholic Church. It is named after the lead seal ("bulla") that was traditionally appended to the end in order to authenticate it. - The (Spanish and Portuguese for the "reconquest") is the period of history of the Iberian Peninsula spanning approximately 770 years between the Islamic conquest of Hispania in 710 and the fall of the last Islamic state in Iberia at Granada to the expanding Christian kingdoms in 1492. The " ended just before the European discovery of the Americasthe "New World"which ushered in the era of the Portuguese and Spanish colonial empires. - The Order of Calatrava was the first military order founded in Castile, but the second to receive papal approval. The papal bull confirming the Order of Calatrava as a Militia was given by Pope Alexander III on September 26, 1164. Most of the political and military power of the order dissipated by the end of the 15th century, but the last dissolution of the order's property did not occur until 1838. After reading the paragraphs above, we are interested in knowing the entity with which 'sancho iii of castile' exhibits the relationship of 'religion'. Find the answer from the choices below. Choices: - catholic church - christian - islam - roman catholic
A:
catholic church