Question: Which Sunni-Islamic fundamentalist organization has a social service wing named Dawah and had its politburo chief step down at the end of his term in 2017?
Context: The Hong Kong Council of Social Service (HKCSS) (Chinese: 香港社會服務聯會﹝簡稱社聯﹞) is a council co-ordinating NGOs in the social service field in Hong Kong, established in 1947.  The Hong Kong Council of Social Service, an umbrella organisation of over 400 social service organisations, is committed to promoting the development of social welfare, and in close collaboration with various sectors building a just, caring and inclusive society. Norley Hall is a country house in the village of Norley, Cheshire, England.  It was built in about 1500 on the site of an earlier house for the Hall family, enlarged in 1697 for John Hall, rebuilt in 1782 for William Hall, and enlarged again in about 1845 for Samuel Woodhouse, giving it a Tudor appearance.  The architect responsible for this latest enlargement was Alfred Bowyer Clayton.  The service wing was extended later in the 19th century, and further additions and alterations were carried out during the 20th century, including the division of the building into two houses.  The gardens were designed by Edward Kemp.  The house is rendered, and has a sandstone ashlar basement, porch and dressings.  The roofs are slated. Its plan is irregular.  The main block is in two storeys, plus an attic and a basement.  On the entrance front is a projecting central gabled bay.  There is a single-storey porch with buttresses, pinnacles, a pierced balustrade, and a Tudor arched doorway.  On the left side of the house is an octagonal stair turret surmounted by a bellcote with a conical roof.  The service wing also has two storeys.  The house is recorded in the National Heritage List for England as a designated Grade II listed building. Rulon Timpson Jeffs (December 6, 1909 – September 8, 2002), known to followers as Uncle Rulon, was the President of the Fundamentalist Church of Jesus Christ of Latter-Day Saints (FLDS Church), a Mormon fundamentalist organization based in Colorado City, Arizona, from 1986 until his death in 2002. Air Commodore Mukhtar Ahmad Dogar was the Pakistan Air Force bomber pilot and aerial warfare specialist who was the first military person to receive the Pakistani military award Sitara-e-Jurat.  A World War II veteran, he is most known for his participation in Indo-Pakistani War of 1947 when he had interecepted the IAF fighter jets.  A founding and former member of what is known now as Special Service Wing, Dogar is known to be instrument in creation of a special forces unit for the Pakistan Air Force called the Special Service Wing (SSW). The Social Service Wing of the Jamaat coordinates with various NGOs in India under the umbrella of the Human Welfare Trust (HWT) like the Ideal Relief Wing (IRW), Islamic Relief Committee (IRC) and Tamil Nadu Relief Committee (TNRC).  The IRW was an active participant in the rescue efforts during the Kashmir earthquake spending almost $200,000 for the relief work and also played important roles in the relief efforts in the aftermath of the Asian tsunami and the 2008 Mumbai attacks.  The TNRC built 38 houses for victims of the Asian tsunami in Tamil Nadu at a total cost of Rs 12.5 million.  It also built 160 permanent houses at Nagore, Pudupattinam and Kottakuppam and provided livelihood assistance to hundreds of families in those areas. The 2004 attempt to re-establish the Sanhedrin was an attempt to set up a revived national rabbinical court of Jewish law in Israel which began in October 2004.  The attempt has been met with the most acceptance and the least opposition among Gedolim and Rosh Yeshivas of all previous attempts in history since the disbandment of the original Sanhedrin in the 4th century.  The organization heading this attempt refers to itself as the nascent Sanhedrin or developing Sanhedrin, and regards itself as a provisional body awaiting integration into the Israeli government as both a supreme court and an upper house of the Knesset, while the Israeli secular press regards it as an illegitimate fundamentalist organization of rabbis.  The organization, which is composed of over 70 rabbis (similar to the composition of the original Sanhedrin), claims to enjoy recognition and support from the entire religious Jewish community in Israel, and has stirred debate in both religious and secularist circles. Catholic Charities of the Archdiocese of New York is one of the largest charitable organizations in the New York metropolitan area.  It is a federation made up of 90 social service agencies throughout the 10 counties of the Archdiocese of New York - Bronx, Dutchess, New York, Orange, Putnam, Richmond, Rockland, Sullivan, Ulster and Westchester.  It is part of a nationwide network of local human service organizations that form Catholic Charities USA—the fourth-largest social service provider in the United States, according to "Forbes", and the 10th largest fundraising organization in the United States, according to "The Chronicle of Philanthropy". Khaled Mashal (Arabic: خالد مشعل‎ ‎ "Khālid Mashʿal ", ] , born 28 May 1956) is a Palestinian political leader and the leader of the Islamic Palestinian organization Hamas since the Israeli assassination of Abdel Aziz al-Rantisi in 2004.  He stepped down as Hamas' politburo chief at the end of his term limit in 2017. The Special Service Wing (SSW), codename the SS Wing, or previously known as 312th Special Service Wing or Maroon berets, is a special operations aerospace unit of the Pakistan Air Force (PAF).  The SS Wing or Maroon Berets are an elite, special operations force based on the United States Air Force's Special Tactics Squadrons and the United States Army Rangers.  The SSW is a new military division of the Special Forces Command of the Pakistan Armed Forces.  The division has recently been revived and is fielding between 800 and 1200 troops. Hamas (Arabic: حماس‎‎ "Ḥamās", an acronym of حركة المقاومة الاسلامية "Ḥarakat al-Muqāwamah al-ʾIslāmiyyah" Islamic Resistance Movement) is a Palestinian Sunni-Islamic fundamentalist organization.  It has a social service wing, Dawah, and a military wing, the Izz ad-Din al-Qassam Brigades.  It has been the "de facto" governing authority of the Gaza Strip since its takeover of that area in 2007.  During this period it fought several wars with Israel.  It is regarded, either in whole or in part, as a terrorist organization by several countries and international organizations, most notably by Israel, the United States and the European Union.
Answer: Hamas