HK's Family Affair      The 39thHong Kong Art Festival, to be held early next year, will be based on the topic of "family"      The art festival, considered to be Asia's best, began in 1973.        "We hope that people from Beijing and from all over the world will go to Hong Kong to enjoy the different performances in our art festival,"Douglas Gautier, the festival's management director, said in a press conference  in the capital.        In the 29 days of the festival, which runs from March 8 to April 7,2012, the audience can choose from 111 performances of 51 programmes given by 700 foreign performers, 450 local artists and 160 actors from the mainland.        Programmes vary  from classical music, jazz, world music, Western and Peking opera, drama and dance to outdoor shows.        The programmes include Beethoven's only opera Fidelio, Shakespeare's drama Romeo and Juliet, the ballet Mozartina and African dances, to name just a few.        The lineup includes the English Touring Theatre, Prague Chamber Orchestra, Zurich Ballet, The Spanish National Dance Troupe, as well as Europe Galante the Petersen Quartet, pianists Angela Hewitt and Lang Lang, and saxophonist Jan Garbarek.        In order to increase attendance, hotels and airlines are offering  _ along with art festival ticket sales, most of which are at 20% and 30% cheaper.        For more information, please check:         _ The main purpose in writing this text is  _  .
to make the 39th Art Festival known to announce the plan of the art festival to introduce the cost of the art festival to sell a service during the art festival
Question: HK's Family Affair      The 39thHong Kong Art Festival, to be held early next year, will be based on the topic of "family"      The art festival, considered to be Asia's best, began in 1973.        "We hope that people from Beijing and from all over the world will go to Hong Kong to enjoy the different performances in our art festival,"Douglas Gautier, the festival's management director, said in a press conference  in the capital.        In the 29 days of the festival, which runs from March 8 to April 7,2012, the audience can choose from 111 performances of 51 programmes given by 700 foreign performers, 450 local artists and 160 actors from the mainland.        Programmes vary  from classical music, jazz, world music, Western and Peking opera, drama and dance to outdoor shows.        The programmes include Beethoven's only opera Fidelio, Shakespeare's drama Romeo and Juliet, the ballet Mozartina and African dances, to name just a few.        The lineup includes the English Touring Theatre, Prague Chamber Orchestra, Zurich Ballet, The Spanish National Dance Troupe, as well as Europe Galante the Petersen Quartet, pianists Angela Hewitt and Lang Lang, and saxophonist Jan Garbarek.        In order to increase attendance, hotels and airlines are offering  _ along with art festival ticket sales, most of which are at 20% and 30% cheaper.        For more information, please check:         _ The main purpose in writing this text is  _  .
A. to make the 39th Art Festival known
B. to announce the plan of the art festival
C. to introduce the cost of the art festival
D. to sell a service during the art festival
Answer: