challenge: According to the draft plan, where will the downtown area of Changchun expand to form a new city center?
  
  A. Eastwards to form a new city center around North Lake Park
  B. Northwards to form a new city center around the Changchun New Area
  C. Southwards to form a new city center around Changchun World Sculpture Park, Weixing Square and their outskirts
  D. Westwards to form a new city center around the New Development Zone
  Answer: 