Number three.

According to Baidu map query, New Century Plaza is located at the intersection of Taiping South Road and Zhongshan East Road, Qinhuai District, Nanjing City. The nearby subway station is Daxinggong Subway Station, which has Metro Line 2 and Metro Line 3. The exit of the square

It's Exit 3. Turn left from Exit 3 and you'll find New Century Plaza.