One-Stop, a national bank, conducted a survey on how long a customer usually has to wait at its bank. According to the survey, on an average, customers waited five to ten minutes in the queue to deposit their cash into a deposit machine. Based on the survey results, the bank decided to add five more deposit machines. A month later, the management realized that the bank had more machines than it required. Which of the following is most likely the reason for the bank to add more machines than required?
A) The information provided by the survey was incomplete.
B) The information provided by the survey was irrelevant.
C) The information provided by the survey was inaccurate.
D) The information provided by the survey was inestimable.

There are various reasons why customers might be in a queue and experience long wait time to deposit money. The survey would most likely have focused on only the timing of the wait and not other factors that contribute to the queue such as network issue or failure to service already existing machines which makes it slow. This in turn meant that the bank proceed to purchase the machines with limited information.