Read this excerpt from Through the Looking-Glass by Lewis Carroll. He shouted this so loud that Alice couldn't help saying, “Hush! You'll be waking him, I'm afraid, if you make so much noise.”

“Well, it’s no use YOUR talking about waking him,” said Tweedledum, “when you're only one of the things in his dream. You know very well you're not real.”

“I AM real!” said Alice and began to cry.

“You won't make yourself a bit realler by crying,” Tweedledee remarked: “there's nothing to cry about.”

“If I wasn't real,” Alice said—half-laughing through her tears, it all seemed so ridiculous—“I shouldn't be able to cry.”

“I hope you don't suppose those are real tears?” Tweedledum interrupted in a tone of great contempt.

Which detail from the excerpt implies that Alice is upset by Tweedledee and Tweedledum’s allegation that she is not real?

Alice does not want to wake the Red King.
Alice begins to cry during this conversation.
Alice laughs at the brothers’ silly ideas.
Alice claims her tears prove that she is real.