Anja's nephew Lolek refuse to go to the hidden bunker because of Option 3: Fear of the unknown
The passage from "Maus" by Art Spiegelman indicates that Anja's nephew Lolek refuses to go to the hidden bunker because he is afraid of the unknown.
He is not afraid of the dark, confined spaces, or spiders, but he is scared of what he might encounter in the bunker. The bunker is a dark, cramped space that is filled with uncertainty, and Lolek is not comfortable with the idea of being trapped there.
The passage states that Lolek is "tired of hiding" and believes that he will be safer if he stays above ground. He is willing to risk his life rather than face the unknown terrors of the bunker. This decision ultimately leads to his capture and deportation to Auschwitz, where he is killed.