Answer:
This best illustrates the Foot-In-The-Door phenomenon
Step-by-step explanation:
This phenomenon occurs when after complying to a small request, a person agrees to a larger request.
In the example above, a company used a foot-in-the-door tecnique (which eventually gave way to the phenomenon) to get an agreement with the community. Probably, hadn't they used this tecnique, the community wouldn't have agreed to the installation of the unattractive, larger sign.