The phrases that support the theme "Putting others’ needs before your own takes courage" are:
-
Mr. Voskuijl has been told that the seven of us are in hiding . . . - This supports the theme as it shows Mr. Voskuijl's willingness to help despite the danger involved in knowing about the people in hiding.
-
Mr. Kugler thought it would be better to have a bookcase built in front of the entrance . . . - This phrase illustrates Mr. Kugler's concern for the safety of those in hiding and his proactive approach to protect them, which reflects putting their needs above his own.
The other options do not seem to pertain directly to the theme, as they do not explicitly indicate an act of courage or selflessness related to putting others' needs first.