Which of the Following Best Describes "Mission Creep

Which of the following best describes "mission creep"?

A) When the IRB oversees issues unrelated to the protection of human rights.
B) When psychologists conduct research that does not involve human behavior.
C) When the U.S. government sets regulations for experiments conducted at private universities.
D) When ethical guidelines from the U.S.A are imposed upon a foreign society in cross-cultural research.