Patricia: During Japan's Tokugawa period, martial arts experts known as ninjas were trained for the purposes of espionage and assassination. Yet at that time there was actually very little most Japanese did not fear ninjas.
Tamara: That is not true. Many wealthy Japanese during the Tokugawa period had their houses constructed with intentionally squeaky floors so that they would ninja were in the house.
What this question is testing
Your task
Find the choice that makes the argument's conclusion less likely to be true.
Common trap
Answers that look negative but attack a claim the argument never relied on.
Winning move
Find the assumption the argument depends on, then pick the choice that undermines it.
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