Question: Which American pharmaceutical distributing company is the parent company of the British pharmacy company, LloydsPharmacy?

Context paragraphs:
McKesson Corporation: McKesson Corporation is an American company distributing pharmaceuticals at a retail sale level and providing health information technology, medical supplies, and care management tools.  The company had sales of $122 billion in 2012.

Bryanston Distributing Company: Bryanston Distributing Company is an American film distribution company that was very active during the early 1970s and was left dormant for almost thirty years.  It is not to be confused with the British Bryanston Films or Bryanston Pictures, the production arm which was liquidated when former producer Anthony "Big Tony" Peraino was prosecuted by the federal government on an obscenity charge stemming from the production and distribution of the film "Deep Throat" (recognized as possibly the most financially successful independent film of all time).

Pro-Active Entertainment Group: Pro-Active Entertainment Group was a United States movie distributing company based in Rancho Mirage California and founded by Leonard Levy.  In the early 2000s, the company distributed or re-distributed many movies, including "The Satanic Rites of Dracula", "Lost on Mars" and "The Fat Spy".  The company had several notable contracts with Raven Moon Entertainment, Inc, Ingram Entertainment Holdings Inc. and Baker & Taylor.  Under its contract with Raven Moon Entertainment, Inc., it purchased DVDs such as "Gina D's Kids Club", "Sing A Long With Gina", and "Smile-Ability", and distributed them to major retail and video stores such as Family Video, Premiere Video, Blockbuster Video, Costco, Hollywood Video, Best Buy, Ingram, Music Land, Borders, Circuit City, Sam's Club, K-mart, Wal-Mart, Sun Coast, Albertsons, Kroger and County Market.  Improved technology such as inexpensive computer software, cameras and other equipment helped to lower production costs, enabling many filmmakers without significant financial backing to produce films, especially for the direct-to-video or direct-to-television markets.  Pro-Active Entertainment Group was among the distribution leaders for these new markets.  Video recording, once viewed as a threat, proved to be a new source of income for home entertainment distributors.  In addition to new releases, distributors re-mastered and re-released older films.  Using the internet and help from other major distributors such as Ingram Entertainment and Baker & Taylor, the Pro-Active Entertainment Group helped many film makers distribute their products.  Pro-Active Entertainment Group operated in California and Tennessee, managed by Levy's associate, Richard Mendelson.  The company closed after running into legal troubles with Backyard Wrestling, Inc.

Master of Pharmacy: The Master of Sciences of Pharmacy (MPharm) is the standard master's degree program in Pharmacy.  It is the oldest honourable Diploma (Degree) authorized from the European Faculties of Pharmacy as it takes five to seven years to complete.  It is based on a credit system higher than the normal Bachelor of Pharmacy degree (BPharm) and the American Pharmaceutical Diploma, Doctor of Pharmacy,(PharmD).  The Faculty is a member of the Association of European Faculties of Pharmacy and its graduates meet all the requirements for the profession as defined by the European Union.  In the initial two years students revise and broaden their knowledge of elementary natural and medical subjects to the level required for understanding specific subjects from the field of Pharmacy.  Students attend lectures and seminars and take part in practical pharmacy placements.  During the following years of study they work on their thesis.  The programme is concluded by defending the thesis and taking the final state examination.  Then the students are awarded the master's degree (abbreviated Mgr.) .  The study programme is compliant with EU directive 2005/36/EC.

Ahmad Najafi: Ahmad Nadjafi Shoushtari (Persian: احمد نجفی شوشتری‎ ‎ , born 1948 in Khorramshahr, Iran) is an Iranian actor, producer, and TV host.  He has a B.A. in Economics from the Woodbury University in Burbank, California.  In 1976, he entered cinema by assisting Massoud Kimiayee in Ghazal.  In 1976, he founded a movie distributing company in U.S., and he was the vice-president of IRIB2, distributing manager of "Tel film".  He was also the chairman of IRIB in America and the vice-president of "free film making" (Kargah Aazaad Filmsazi) studio; he has also founded "7th art" studio.  He hosted the TV show "Sandali Dagh".

LloydsPharmacy: LloydsPharmacy is a British pharmacy company, with more than 1,500 pharmacies.  It has around 17,000 staff and dispenses over 150 million prescription items annually.  It is owned by the German company Celesio, formerly GEHE AG, which is in turn owned by the American McKesson Corporation.

Allen Lloyd: Allen John Lloyd (born May 1949) is the founder of LloydsPharmacy, a British pharmacy company, with more than 1,600 pharmacies, and around 17,000 staff.

American Pharmacists Association: The American Pharmacists Association (APhA, previously known as the American Pharmaceutical Association), founded in 1852, is the first-established professional society of pharmacists within the United States.  APhA is made up of more than 62,000 practicing pharmacists, pharmaceutical scientists, student pharmacists, pharmacy technicians, and others interested in advancing the profession.  Through a House of Delegates that meets each year at the APhA Annual Meeting & Exposition, APhA provides a forum for discussion, consensus building, and policy setting for the profession of pharmacy.  In fact, nearly all of pharmacy's specialty organizations trace their roots to APhA, having originally been a section or part of this broad foundation of pharmacy.  The APhA Board of Trustees is responsible for broad direction setting of the Association.  All members choose one of these three Academies when they join APhA:

AMCON Distributing: AMCON Distributing Company is an American retail and wholesale consumer commodities sales and distribution company.  Their wholesale products, which include processed and perishable foods, as well health care and tobacco products, are distributed to stores, supermarkets, and outlets primarily in the Rocky Mountains and southern regions of North America.  The company operates two segments including wholesale distribution segment and retail segment.  The company also operated sixteen retail health food stores in Florida and the Midwest.  The company operates 4,500 convenience stores and 16,000 different products.  In October 2012, it was ranked as the ninth largest convenience store distributor in the United States based on its annual sales.

The Clinging Vine: The Clinging Vine is a 1926 silent film produced by Cecil B. DeMille and Paul Sloane and directed by Sloane.  It was distributed by DeMille's Producers Distributing Corporation.  The film is based on a 1922 Broadway play by Zelda Sears.  A starring vehicle for Leatrice Joy who left Paramount along with DeMille when he formed his own distributing company PDC.

Supporting paragraphs: LloydsPharmacy McKesson Corporation
Answer: McKesson Corporation