In the book night, what is the old man on the transport to Buchenwald's personality?

The excerpt is really needed to give a definite answer, but i would say b. guarded, because when the settlers arrived the native americans tried shooting them with arrows.

Im assuming the underlined word is indefatigable. the root word here is fatigue, which basically means exhaustion, so since the prefix is "in"- meaning anti or un- then that means you're  inexhaustible.  -hope this