Recently, there has been a report on "Green Travel of Civil Servants" on the Internet, that is, the Education Bureau of City A has increased the use of official bicycles, which has reduced the use of official vehicles for closer business activities, which has significantly reduced the use of official vehicles. The person in charge read the report and thought that the introduction of official bicycles could reduce financial expenses, so he decided to adopt this approach. Which of the following, if true, does not constitute a prerequisite for the above decision? ['It is feasible and desirable to combine the way of cycling with the geographical environment of B city and road traffic conditions.', 'The staff size and the number of existing buses of the B. B Environmental Protection Bureau are similar to those of the A Education Bureau.', 'The use of bicycles to replace cars in close range business activities will not affect office efficiency.', 'The original business activities of D. B Environmental Protection Bureau mainly used car travel.']