Question: Johnny Hornby is a British entrepreneur, he is the founder of WPP plc, (Wire and Plastic Products), a British multinational advertising and public relations company with its main management office in London, England, and its executive office in Dublin, in which country?

Context paragraphs:
Johnny Hornby: Johnny Hornby is a British entrepreneur.  He is the founder of WPP plc-backed advertising agency CHI & Partners and marketing agency network The&Partnership.

Finsbury (public relations): Finsbury is a public relations company based in London and New York that specialises in financial services clients.  It is a subsidiary of British advertising and media conglomerate WPP plc.

Public relations: Public relations (PR) is the practice of managing the spread of information between an individual or an organization (such as a business, government agency, or a nonprofit organization) and the public.  Public relations may include an organization or individual gaining exposure to their audiences using topics of public interest and news items that do not require direct payment.  This differentiates it from advertising as a form of marketing communications.  Public relations is the idea of creating coverage for clients for free, rather than marketing or advertising.  An example of good public relations would be generating an article featuring a client, rather than paying for the client to be advertised next to the article.  The aim of public relations is to inform the public, prospective customers, investors, partners, employees, and other stakeholders and ultimately persuade them to maintain a positive or favorable view about the organization, its leadership, products, or political decisions.  Public relations professionals typically work for PR and marketing firms, businesses and companies, government, and public officials as PIOs and nongovernmental organizations, and nonprofit organizations.  Jobs central to public relations include account coordinator, account executive, account supervisor, and media relations manager.  Public relation is an action of convincing people.  The PR person talks with others that make them think about the things the person wants them to think, and the people regard the person as their believes.  Public relations helps people to build up the connection to media and society that they can talk steadily.

Publicis: Publicis Groupe is a French multinational advertising and public relations company, and is the oldest and one of the largest marketing and communications companies in the world, by revenue, headquartered in Paris.

Hamish McLennan: Hamish McLennan (born 13 June 1966) is an Australasian businessman, who is chairman of REA Group, a global online real estate advertising company, a non executive director of the $50 billion Magellan Financial Group and advisor to technology company, Tiger Pistol headquartered in Austin, Texas.  He was previously Executive Vice President, Office of the Chairman, News Corporation, and Chairman of Young & Rubicam (Y&R), the largest division of Y&R Brands which is in turn owned by WPP plc a British multinational advertising and public relations company.  He was also previously Chief Executive Officer and Managing Director of Australian Media company Ten Network Holdings.

Roland Rudd: Roland Dacre Rudd (born April 1961) is the founder and chairman of Finsbury (formerly RLM Finsbury), the public relations firm.  Rudd was educated at Oxford University, becoming President of the Oxford Union before starting a career in journalism that he left to found Finsbury.  He sold that company to WPP plc in 2001, making an estimated £40 million.

WPP plc: WPP plc, (Wire and Plastic Products) is a British multinational advertising and public relations company with its main management office in London, England, and its executive office in Dublin, Ireland.  It owns a number of advertising, public relations and market research networks, including IMRB, Millward Brown, Grey, Burson-Marsteller, Hill & Knowlton, JWT, Ogilvy & Mather, TNS, Young & Rubicam and Cohn & Wolfe.

George L. San Jose: George L. San Jose is the Founder and Chief Creative Officer of the multicultural marketing and advertising agency, The San Jose Group, public relations company SJ Public Relations and international marketing company, San Jose Consulting.

Inez Y. Kaiser: Inez Yeargan Kaiser (April 22, 1918 – July 31, 2016) was an African-American educator, public relations expert, and entrepreneur.  She was the first African-American woman to run a public relations company with national clients.

Havas: Havas (] ) is a French multinational advertising and public relations company, headquartered in Paris, France.  It operates in more than 100 countries and is one of the largest global advertising and communications groups in the world.  Havas consists of two main operational divisions:

Supporting paragraphs: Johnny Hornby WPP plc
Answer: Ireland