As many as 2,000 packages get shipped to the wrong address

As many as 2,000 packages get shipped to the wrong address each month due to postal errors. In a concerted effort to reduce the number of mistakes, post offices implemented an eight-step method that included ZIP code verification, legibility confirmation, and new carrier training. The postmaster estimated that over a 45-day period, more than 2,040 packages that would otherwise have gone to the wrong address were correctly delivered.

Which of the following is best supported by the above statements?

A. The eight-step method implemented by post offices will continue to be used in the future.
B. The eight-step method corrected many of the deficiencies in the original package delivery system.
C. Prior to the implementation of the new method, package delivery personnel were negligent in performing their jobs.
D. The postmaster is uncertain about the efficacy of the new package delivery method.
E. In the future, no packages will be shipped to the wrong address.