During reading, Alyssa encounters the word flaw. She believes that flaw means “physical or structural defect.” Which sentence uses Alyssa’s definition of the word flaw?

Impatience, especially with his younger sister, has always been a flaw for Justin.

The flaw in the story's plot caused confusion for several readers.

Even though Marty tries to avoid sweets, chocolate remains a flaw of his.

The gemstone's one major flaw was a tiny black speck.