English I (Pre-AP): Ender's Game Quickwrite on Graff

The unknown voices at the beginning of Chapter 3 of Ender's Game, suggest that to get Ender away from his sister, Valentine, he'll have to be told a lie. If the lie fails, he'll have to be told the truth.

In a brief paragraph explain whether Graff told Ender the truth or if everything he said was a lie. Support your response with evidence from the text.