Question: Ken Lee is a businessman who co-founded a retailing company that is specialized in which products ?

Context paragraphs:
Snowy Hydro: Snowy Hydro Limited is an electricity generation and retailing company in Australia that owns, manages, and maintains the Snowy Mountains Hydro-electric Scheme which consists of nine hydro-electric power stations and sixteen large dams connected by 145 kilometres (90 mi) of tunnels and 80 kilometres (50 mi) of aqueducts located mainly in the Kosciuszko National Park.  Snowy Hydro also owns and operates two gas-fired power stations in Victoria and one in New South Wales, and owns two electricity retailing businesses (Red Energy and Lumo Energy).

Associated British Foods: Associated British Foods plc (ABF) is a British multinational food processing and retailing company whose headquarters are in London, United Kingdom.  Its ingredients division is the world's second-largest producer of both sugar and baker's yeast and a major producer of other ingredients including emulsifiers, enzymes and lactose.  Its grocery division is a major manufacturer of both branded and private label grocery products and includes the brands Mazola, Ovaltine, Ryvita, Jordans and Twinings.  Its retail division, Primark, has around 325 stores with over 65,00000 sqft of selling space across Austria, Belgium, Germany, Ireland, the Netherlands, Portugal, Spain, the UK, and the United States.

Ken Lee (businessman): Ken Lee (Chinese: 李光裕, Pinyin: lǐ guāng yù, 1932 – 21 December 2007) was a Chinese-Australian businessman who co-founded the Bing Lee chain of electronic stores with his father, Bing Lee.  He also served as the company's chairman from 1987 until 2007.

B&amp;Q: B&Q plc is a British multinational DIY and home improvement retailing company, headquartered in Eastleigh, England, United Kingdom and is a wholly owned subsidiary of Kingfisher plc.  Founded by Richard Block and David Quayle in 1969 originally as Block & Quayle, the retail chain offers over 40,000 products across 300 stores and online.

Lifestyle Nutrition: "Lifestyle Nutrition LLC" is a sports nutrition speciality retailing company, with its head-office in Dubai.  Founded in the year 1996, the company has since then has embarked on an aggressive expansion plan - which grew into a chain with several outlets across the UAE.  The company sells health and nutrition related products, including vitamins, protein, branched-chain amino acids (BCAA), creatine, glutamine, meal replacement products, weight loss products and supplements for joint health.

The Home Depot: The Home Depot, Inc. or Home Depot is an American home improvement supplies retailing company that sells tools, construction products, and services.  The company is headquartered at the Atlanta Store Support Center in unincorporated Cobb County, Georgia (with an Atlanta mailing address).

Bing Lee: Bing Lee is an Australian retailing company, a chain of superstores specialising in consumer electronics, computer and telecommunication goods.  Bing Lee is the largest privately held electrical retail business in New South Wales with 41 stores (13 franchised) and a turnover of about $490 million.

Mattress Giant: Mattress Giant Corporation was an American retailing company and mattress store chain founded in 1986 in Miami, Florida.  The company was based in Addison, Texas.  In 2012 it was announced Mattress Firm would acquire all Mattress Giant locations in the U.S in a $47 million deal, virtually all Mattress Giant locations will convert to Mattress Firm.  Some stores were converted to Sleepy's which were later converted to Mattress Firm.  The deal closed in July 2012 and it effectively ended Mattress Giant's presence as a bedding retailer.  The website was operated through December 2012; and it delivered mattress related products to houses.

Alrifai: Alrifai is a Lebanese multinational nut retailing company headquartered in Beirut, Lebanon, and a wholly owned subsidiary of Alrifai International Holding Ltd.  It is the largest nut retailing chain in the Middle East and the company with the biggest market share in Lebanon.

SuperValu (United States): SuperValu, Inc. is an American retailing company.  The corporation, headquartered in the Minneapolis suburb of Eden Prairie, Minnesota, has been in business for nearly a century.  It is the fifth-largest food retailing company in the United States (after Kroger and Albertsons), and ranks in the top 100 on the 2015 Fortune 500 list.  "Supermarket News" ranked SuperValu #1 in the 2008 "Top Wholesalers for 2008".

Supporting paragraphs: Ken Lee (businessman) Bing Lee
Answer: consumer electronics, computer and telecommunication goods