【P4】There is one step the TSA could take that would not require remodeling airports or rushing to hire: Enroll more people in the PreCheck program. PreCheck is supposed to be a win-win for travelers and the TSA. Passengers who pass a background check are eligible to use expedited screening lanes. This allows the TSA to focus on travelers who are higher risk, saving time for everyone involved. The TSA wants to enroll 25 million people in PreCheck.
The word “expedited”（Line 4, Para. 5) is closest in meaning to ______
A : [A] quieter
B : [B] faster
C : [C] wider
D : [D] cheaper
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