answers: The Sun
context: The Sunday Times The Sunday Times is the largest-selling British national newspaper in the "quality press" market category. It is published by Times Newspapers Ltd, a subsidiary of News UK, which is in turn owned by News Corp. Times Newspapers also publishes "The Times". The two papers were founded independently and have been under common ownership only since 1966. They were bought by News International in 1981. "The Sunday Times" occupies a dominant position in the quality Sunday market; its circulation of just under one million equals that of its main rivals, "The Sunday Telegraph" and "The Observer", combined. While </s> spite of its falling popularity over the previous few months which had been the result of the Winter of Discontent, where the country was crippled by numerous public sector strikes. By the time of the 1983 general election, Labour support was at a postwar low, partly due to the strong challenge by the recently formed SDP-Liberal Alliance. Despite this, the "Daily Mirror" remained loyal to Labour and urged its readers to vote for the party (now led by Michael Foot), condemning the Thatcher-led Tory government for its "waste of our nation", condemning the rise in unemployment that Thatcher's Conservative government </s> "Daily Mirror" and the "Daily Mail". For a brief period in the late 1990s and early 2000s this lead was more than a million copies per day. Sustained decline began in 2004, in line with print journalism as a whole, and in the six-year period from 2012-18 it lost more than a million copies from its daily figures. "The Sun"'s long run at the top was finally broken in February 2018 when it was announced that the circulation of the free "Metro" newspaper had overtaken it for the first time. However it remains the biggest-selling newspaper in the UK. The
question: which is the best selling newspaper in the uk