What important theme is implied in "The Turtle" from The Grapes of Wrath?

Life, in all its forms, is resilient.

sense of humor is important in life.

Humans have no regard for animals.

Life is a vast desert wasteland.

The correct answer is A)

The theme speaks of of the resilience and tenacity of life regardless of what form it takes: a human, a turtle, or an ant.

Explanation:

The turtle seems to survive despite the odds. Turtles are seemingly weak and slow, however, in the plot, we see a turtle focused on what it wants and giving it all it's got. In paragraph 2 of chapter 3, the turtle exemplifies focus as it crawled straight towards its locus point. The narrator also gives an exciting and suspense-filled account of how the turtle survives being run over by several cars.  

All the above allude to the resilient nature of the turtle which typifies life.

Cheers!

one is a red flower, and one is the sky when the sun sets.