Which of the Following Choices Is the Best Example of Strong-Form

Which of the following choices is the best example of strong-form trust?

A) A truck driver fills his tank with gasoline at the nearest station.
B) Instead of taking the money, a construction foreman reports a vendor's offer of monetary kickbacks to management.
C) A healthcare system threatens to expel an office from its membership if the office continues to ignore contractual obligations.
D) A restaurant offers a new variety of menu items weekly.