Context: Al-Masjid an-Nabaw (Prophet's Mosque) is a mosque established and originally built by the Islamic prophet Muhammad, situated in the city of Medina in Saudi Arabia. Al-Masjid an-Nabawi was the third mosque built in the history of Islam and is now one of the largest mosques in the world. It is the second-holiest site in Islam, after Masjid al-Haram in Mecca. It is always open, regardless of date or time., The Madinah Region ("Al-Madnah al-Munawarah") is a region of Saudi Arabia, located on the country's west side, along the Red Sea coast. It has an area of 151,990 km² and a population of 1,777,973 (2010 Census), subdivided into seven governorates ("muafaat"):, Saudi Arabia, officially known as the Kingdom of Saudi Arabia (KSA), is an Arab sovereign state in Western Asia constituting the bulk of the Arabian Peninsula. With a land area of approximately , Saudi Arabia is geographically the fifth-largest state in Asia and second-largest state in the Arab world after Algeria. Saudi Arabia is bordered by Jordan and Iraq to the north, Kuwait to the northeast, Qatar, Bahrain, and the United Arab Emirates to the east, Oman to the southeast, and Yemen to the south. It is separated from Israel and Egypt by the Gulf of Aqaba. It is the only nation with both a Red Sea coast and a Persian Gulf coast, and most of its terrain consists of arid desert or barren landforms., Religion is a cultural system of behaviors and practices, world views, sacred texts, holy places, ethics, and societal organisation that relate humanity to what an anthropologist has called "an order of existence". Different religions may or may not contain various elements, ranging from the "divine", "sacred things", "faith", a "supernatural being or supernatural beings" or "some sort of ultimacy and transcendence that will provide norms and power for the rest of life.", Muhammad (c. 570 CE  8 June 632 CE) is the central figure of Islam and widely regarded as its founder by non-Muslims. He is known as the "Holy Prophet" to Muslims, almost all of whom consider him to be the last prophet sent by God to mankind to restore Islam, believed by Muslims to be the unaltered original monotheistic faith of Adam, Abraham, Moses, Jesus, and other prophets. Muhammad united Arabia into a single Muslim polity and ensured that his teachings, practices, and the Quran, formed the basis of Islamic religious belief., Jeddah (sometimes spelled "Jiddah" or "Jedda" "Jidda" ) is a city in the Hijaz Tihamah region on the coast of the Red Sea and is the major urban center of western Saudi Arabia. It is the largest city in Makkah Province, the largest sea port on the Red Sea, and the second-largest city in Saudi Arabia after the capital city, Riyadh. With a population currently at 4.2 million people, Jeddah is an important commercial hub in Saudi Arabia., The Hajj ("" "pilgrimage") is an annual Islamic pilgrimage to Mecca, the most holy city of the Muslims, and a mandatory religious duty for Muslims that must be carried out at least once in their lifetime by all adult Muslims who are physically and financially capable of undertaking the journey, and can support their family during their absence. It is one of the five pillars of Islam, alongside Shahadah, Salat, Zakat, and Sawm. The Hajj is the largest annual gathering of people in the world. The state of being physically and financially capable of performing the Hajj is called "istita'ah", and a Muslim who fulfills this condition is called a "mustati". The Hajj is a demonstration of the solidarity of the Muslim people, and their submission to God (Allah). The word Hajj means "to intend a journey", which connotes both the outward act of a journey and the inward act of intentions., Custodian of the Two Holy Mosques ( Arabic :     dim al - aramayn aš - Šarfayn ) , sometimes translated as Servant of the Two Noble Sanctuaries or Protector of the Two Holy Cities , is a royal style that has been used by many Islamic rulers including the Ayyubids , the Mamluk Sultans of Egypt , the Ottoman Sultans , and the modern Saudi kings . The title refers to the monarch taking the responsibility of guarding and maintaining the two holiest mosques in Islam , Al - Masjid al - Haram ( the Sacred Mosque ) in Mecca and Al - Masjid an - Nabawi ( the Prophet 's Mosque ) in Medina ., The Hejaz, also Al-Hijaz ("", literally "the Barrier"), is a region in the west of present-day Saudi Arabia. The region is so called as it separates the land of the Najd in the east from the land of Tihamah in the west. It is also known as the "Western Province." It is bordered on the west by the Red Sea, on the north by Jordan, on the east by the Najd, and on the south by Asir. Its main city is Jeddah, but it is probably better known for the Islamic holy cities of Mecca and Medina. As the site of Islam's holiest places, the Hejaz has significance in the Arab and Islamic historical and political landscape., Mecca or Makkah ("" ) is a city in the Hejaz region of Saudi Arabia that is also capital of the Makkah Region. The city is located inland from Jeddah in a narrow valley at a height of above sea level. Its resident population in 2012 was roughly 2 million, although visitors more than triple this number every year during the "hajj" ("pilgrimage") period held in the twelfth Muslim lunar month of "Dhu al-Hijjah"., The Makkah Region or Mecca Region ("") is the most populous region (mintaqah) in Saudi Arabia. It is located in western Saudi Arabia and has an extended coastline. It has an area of 153,128 km² and a population of 6,915,006 (2010 census). Its capital is Mecca (also transliterated as Makkah), the holiest city in Islam, and its largest city is Jeddah, which is also Saudi Arabia's main port city. The third major city is Taif., Medina (', "the radiant city"; or , ', "the city"), also transliterated as Madnah, is a city in the Hejaz region of Saudi Arabia that is also the capital of the Al Madinah Region. The city contains al-Masjid an-Nabawi ("the Prophet's Mosque"), which is the burial place of the Islamic prophet Muhammad, and is the second-holiest city in Islam after Mecca., 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., Subject: custodian of the two holy mosques, Relation: country, Options: (A) al madinah region (B) algeria (C) arabia (D) egypt (E) iraq (F) jordan (G) oman (H) saudi arabia (I) united arab emirates (J) world
Output: saudi arabia