Question: Which airline does the China National Aviation Holding Company support?

Context paragraphs:
China National Aviation Fuel: China National Aviation Fuel Group Corporation (CNAF) is a Chinese state-owned enterprise.  The company owned 51% stake of China National Aviation Fuel Supply Co., Ltd. (), one of the largest jet fuel supplier of China.  China National Aviation Fuel Group was ranked 484th in 2016 Fortune Global 500 list.

Wang Changshun: Wang Changshun (; born 1957) is a Chinese business executive who is the chairman of the board for Air China as of 2013.  Concurrently, he serves as general manager of the China National Aviation Holding Company (CNAHC), and the vice chairman of the board at China National Aviation Corporation.  Previously he worked for various regulatory agencies, including the Civil Aviation Administration of China.

China National Aviation Holding: China National Aviation Holding Company also known as Air China Group is a Chinese state-owned enterprise which is the parent company of Air China and Air Macau.  The company was formed on 11 October 2002 by the merger of Air China, China Southwest Airlines and China National Aviation Corporation (Group) Limited.

British Aviation Services: British Aviation Services Limited (Britavia) was an early post-World War II airline holding company and air transport operator that could trace its roots back to 1946.  Its main activities included trooping, inclusive tour (IT) and worldwide passenger and freight charter services. British Aviation Services' first investment in a British independent airline occurred in 1946, when it acquired a minority interest in Silver City Airways.  Silver City Airways operated the world's first cross-Channel air ferry service on 13 July 1948.  It subsequently became British Aviation Services' biggest operating division.  In 1953, British Aviation Services took over the independent airline Air Kruise.  The same year, BAS Group also took control of Aquila Airways, the last commercial flying boat operator in the United Kingdom.  The completion of these acquisitions by mid-1954 resulted in a reorganisation of the British Aviation Services group, with British Aviation Services Ltd (BAS Group) becoming the group's holding company and Britavia one of its operating subsidiaries.  By the late 1950s, BAS Group became Britain's largest independent airline operator.  Its numerous operating divisions included Britavia's Hermes Division at Blackbushe Airport and Aquila Airways's Flying Boat Division at Hamble near Southampton.  The former concentrated on trooping services and inclusive tours while the latter provided scheduled services to Portugal, the Canary Islands and Italy.  In 1962, BAS Group merged with British United Airways (BUA), which by that time had replaced BAS as the UK's largest independent airline operator.

China National Aviation Corporation: The China National Aviation Corporation was a Chinese airline, it was nationalized after the Communist Party of China took control in 1949 (as Civil Aviation Administration of China).  It was a major airline in the Republic of China.

Zhejiang Airlines: Zhejiang Airlines () was an airline based in Jianqiao Airport in Hangzhou, Zhejiang, China.  The airline was wholly owned by China National Aviation Holding.  During 2004, as part of a consolidation of the Chinese aviation industry, Air China absorbed Zhejiang Airlines when CNAC was merged into Air China.

China Aviation Oil: China Aviation Oil (Singapore) Corporation Ltd ("CAO") () is the largest purchaser of jet fuel in the Asia Pacific region and the key supplier of imported jet fuel to the civil aviation industry of the People's Republic of China ("PRC").  CAO supplies to the three key international airport in the PRC, i.e. Beijing Capital International Airport, Shanghai Pudong International Airport and Guangzhou Baiyun International Airport, and accounts for more than 90% of PRC's jet fuel imports.  CAO also engages in international trading of jet fuel and other oil products.  CAO owns investments in strategic oil-related businesses, which include Shanghai Pudong International Airport Aviation Fuel Supply Company Ltd and China National Aviation Fuel TSN-PEK Pipeline Transportation Corporation Ltd.

China's Wings: China's Wings: War, Intrigue, Romance and Adventure in the Middle Kingdom during the Golden Age of Flight is a 2012 book by Gregory Crouch, published by Bantam Books.  The book discusses the history of the China National Aviation Corporation (CNAC) and is focused on William Langhorne Bond as the central character.  Harry Eagar of the "Maui News" stated that "is largely a biography of Bond."  The book also describes Moon Fun Chin, a Chinese-American who rose from peasant roots, to become a lead CNAC pilot and finally to owning his own airline.  Among other events, the book discusses the establishment of the first airline in China, the Second Sino-Japanese War, "The Hump" airlift, and the 1938 Kweilin incident.  The book ends after the 1949 Communist takeover.

Air Macau: Air Macau Company Limited (Chinese: 澳門航空股份有限公司 ) is the flag carrier airline of Macau.  It operates services to 23 destinations in Mainland China, Japan, South Korea, Philippines, Thailand, Taiwan and Vietnam, as well as regional international services, from its hub at Macau International Airport.  In 2014, Air Macau carried 2.12 million passengers with an average load factor of 68.20% and carried 15,900 tonnes of cargo and mail.

The Emirates Group: The Emirates Group (Arabic: مجموعة الإمارات‎ ‎ ) is a Dubai-based international aviation holding company headquartered in Garhoud, Dubai, United Arab Emirates, near Dubai International Airport.  The Emirates Group comprises Dnata, an aviation services company providing ground handling services at 17 airports, and Emirates Airline, the largest airline in the Middle East.  Emirates Airlines flies to over 140 destinations across 6 continents, operating a fleet of over 250 wide-bodied aircraft.  The airline has 170 aircraft on order worth US$58 billion.

Supporting paragraphs: China National Aviation Holding Air Macau
Answer: Air Macau