Answer:
They can never leave the hiding place, because it is not safe.
Explanation:
It explains in the text that she can not go down on sunday or to listen to the radio. That rules out the the last option. He says you must never leave, because it isn't safe, so that rules out the first option and the second option. The text explains that they should never leave because it isn't safe and that is what the 3rd answer says.
In the book unbroken where did Louie go to college?
louies went to college at USC
Them would be the correct pronoun for this sentence because books is plural and is an object, so its pronoun must be third person. The 3rd person plural pronoun in English is they, and its objective/accusative form (the form used when the item is the object of a verb) is them, so there's your answer.