 Which word doesn't describe the cadets?
They were something more—and something less—they were, in short, humanity's hopes for survival! Earth couldn't turn out enough starmen in the schools, so promising kids were being shipped out for training as cadets on their twelfth birthday. Earth had ordered him to detour here, after leaving his load of deep-sleep stored colonists on Official World 71, to check on any sign of Hennessy. One seemed to be almost eight feet tall, leading the others directly toward the spacesuited cadets. The thing was standing directly ahead of him, a cadet on each shoulder. Another jeep had drawn up, and men were examining the cadets. I want to know what happened to Hennessy and why that ship was buried against detection.
 cautious
 cautious  naïve  embellishers  young