In recent years, a village outside Osaka, Japan has taken to hosting a ninja festival, a celebration of Japan’s heritage that reflects on its feudal past while exalting its pop culture driven present. But clearly only children take this festival seriously, for they are the only attendees who bother to dress up as ninjas.
Which of the following is an assumption on which the argument depends?
a) Any attendee who dresses up as a ninja takes the festival seriously.
b) No attendee who takes the festival seriously would fail to dress up as a ninja.
C) Anyone who is not dressed up as a ninja is not attending the festival
d) The festival organizers have instituted a ninja-themed dress code.
E) If an attendee is not dressed as a ninja, then that attendee will not be taken seriously by other attendees.