I NEEDA ANSWER SOON. Monika's mother was late for work twice last month because of heavy traffic. Monika wonders what can be done to relieve some of the traffic problems in her city. Which research question would lead to the most information about how Monika's city could decrease traffic problems?
A.
Which strategies have improved traffic in cities across the country?
B.
How long are commuters typically delayed by traffic problems?
C.
Which cities in the United States have the worst traffic problems?