Paul mccartney is a singer, songwriter, and composer. he is most recognized as being a founding member of the beatles. he holds the guinness world record as the most successful musician and composer in popular-music history. in fact, his song "yesterday" is the most covered song of all time. mccartney is also a painter and a champion for animal rights. he is also known for his outspoken views on vegetarianism, music education, and third world debt. he was knighted in 1997. which sentence is the best concluding sentence to the paragraph? a one of the beatles' earliest hits in america was "i want to hold your hand." b mccartney continues to record music and fight for causes he thinks are important. c mccartney became the first artist signed to starbucks' new record label in 2007. d the beatles last concert was at candlestick park, san francisco, in august 1966.