Which Is True About Yakuza Organizations

Which is true about Yakuza organizations?

A) They lack diversity, much like the Italian Mafia, which prevents criminal justice organizations from investigating them.
B) They often lack a hierarchy of command, allowing individual city states to rule themselves.
C) They have failed to penetrate political corruption due to strict Yakuza beliefs associated with trust and truthfulness.
D) They are powerful actors in the legitimate economy.