Correct
老三篇
/ lǎosānpiān /
Strokes
Definition
Lao San Pian, three short essays written by Mao Zedong before the PRC was established
Example
As a Noun
Three Old Essays ［The Three Articles by Mao Zedong: Serve the People （《为人民服务》） In Memory of Norman Bethune （《纪念白求恩》）and The Foolish Old Man Removes the Mountain （《愚公移山》）］