What does Genesis 43:7 mean?

They answered, 'The man kept pressing us with questions about our family. He asked if our father was still alive and if we had another brother. We just answered his questions. How could we know he’d say, “Bring your brother here”?' Genesis 43:7 - Modern Text Bible

(The brothers defend themselves, saying they only answered what they were asked. They couldn’t have predicted the official would demand to see Benjamin.)