Question

Because of tension between the police department and the citizens of Metropolis, the city council surveys residents for suggestions on how to improve police-community relations. This example best illustrates _____ as a source of research ideas.

1. predictions
2. observation of the world around us
3. practical problems
4. past research
5. theories

Answer 1

Practical Problems.

Step-by-step explanation:

Since there are conflicts between the police of metropolis and the citizens.The city council is surveying the residents recording their suggestions on improving the police-community relations.So there are practical problems in the city of metropolis.

Hence the answer is option 3.