Answer:
The correct answer is D: Nothing good lasts forever.
Step-by-step explanation:
Modernist writers were influenced by World War I and its terrific outcomes, so they created a pessimistic vision of the world, characterized by lack of hope, chaos and destruction tendencies (caused by WWI), hard losses and exiles.
They also were influenced by so-called social evil, this is, consequences of industrialization and many technical developments. Modernist writers were convinced that nothing good lasts forever, because they strongly believed that the War and the industrialization destroyed everything.