Which of the Following Sentences Is the Most Concise

Which of the following sentences is the most concise?

A) Authorities are in agreement about public transport as the solution to the problem of traffic.
B) If the traffic situation is to be improved, widespread adoption of public transport is the best option.
C) At present, public transport is the best solution to the traffic problem.
D) At this point in time, public transport is emerging as the best solution to the problem of traffic.
E) Public transport is a good solution.