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Which of the following statements is true with regard to the Houston Airport experiment?
A.
Professor Richard Larson hates queuing so much that he tears his hair out.
B.
According to Larson' s study, the long waiting was the cause of annoyance.
C.
When all the travelers had to wait for 2 minutes, there were a lot of complaints.
D.
When the walking time was extended to 6 minutes, there were hardly any complaints.