Answer:
Behrman's masterpiece in "The Last Leaf" is the painting of the last leaf. It is a masterpiece because it saves Johnsy's life by giving her the inner strength to fight the disease so that her body can recover. Johnsy believes that when the last leaf dies, she will die. By painting the leaf on the wall Johnsy can see from her window, Behrman makes Johnsy believe that the last leaf is still alive and she gets better.
Step-by-step explanation: