Question: Country A is the origin of most foreign inhabitants of the country where the performers of "Best Of" are from. Who ruled Country A before it was conquered by the followers of Muhammad?

<P0-S0> Best Of is a greatest hits album by the Swedish group The Cardigans, released in Europe in January 2008. <P0-S1> It contains twenty-one singles and album tracks. <P0-S2> There is also a double-CD version with rare tracks and B-sides. <P0-S3> Both versions of the album contain no new songs, though some tracks had previously been released only in the UK or Japan. <SEP> <P1-S0> The Cardigans are a Swedish rock band formed in Jönköping, Sweden, in 1992 by guitarist Peter Svensson, bassist Magnus Sveningsson, drummer Bengt Lagerberg, keyboardist Lars-Olof Johansson and lead singer Nina Persson. <P1-S1> The group's line-up has been very stable, the only change being that their post-hiatus shows since 2012 have been with Oskar Humlebo on guitar instead of Svensson. <SEP> <P2-S0> Between 1820 and 1930, approximately 1.3 million Swedes, a third of the country's population at the time, emigrated to North America, and most of them to the United States. <P2-S1> There are more than 4.4 million Swedish Americans according to a 2006 US Census Bureau estimate. <P2-S2> In Canada, the community of Swedish ancestry is 330,000 strong.There are no official statistics on ethnicity, but according to Statistics Sweden, around 3,193,089 (31.5%) inhabitants of Sweden were of a foreign background in 2017, defined as being born abroad or born in Sweden with at least one parent born abroad. <P2-S3> The most common countries of origin were Syria (1.70%), Finland (1.49%), Iraq (1.39%), Poland (0.90%), Iran (0.73%) and Somalia (0.66%). <P2-S4> Sweden subsequently has one of the oldest populations in the world, with the average age of 41.1 years. <SEP> <P3-S0> "people are crazy" is a song written by bobby braddock and troy jones and recorded by american country music singer billy currington. <P3-S1> it was released in march 2009 as the second single from currington’s 2008 album "little bit of everything". <P3-S2> the song became currington's third number one hit on the us "billboard" hot country songs chart. <P3-S3> on december 2, 2009, the song was nominated for two grammy awards for best male country vocal performance and best country song. <P3-S4> the song was also nominated for "song of the year" at the 2010 academy of country music awards. <SEP> <P4-S0> The Quran and Muhammad talked about racial equality and justice as in The Farewell Sermon. <P4-S1> Tribal and nationalistic differences were discouraged. <P4-S2> But after Muhammad's passing, the old tribal differences between the Arabs started to resurface. <P4-S3> Following the Roman–Persian Wars and the Byzantine–Sassanid Wars, deep rooted differences between Iraq, formally under the Persian Sassanid Empire, and Syria, formally under the Byzantine Empire, also existed. <P4-S4> Each wanted the capital of the newly established Islamic State to be in their area. <P4-S5> Previously, the second caliph Umar was very firm on the governors and his spies kept an eye on them. <P4-S6> If he felt that a governor or a commander was becoming attracted to wealth, he had him removed from his position. <SEP> <P5-S0> a foreign direct investment (fdi) is an investment in the form of a controlling ownership in a business in one country by an entity based in another country. <P5-S1> it is thus distinguished from a foreign portfolio investment by a notion of direct control.