According to the international law doctrines applicable before the mid-twentieth century, if commercial activity within a particular nation's territorial waters threatened all marine life in those waters, the nation would have been A. formally censured by an international organization for not properly regulating marine activities B. called upon by other nations to establish rules to protect its territorial waters C. able but not required to place legal limits on such commercial activities D. allowed to resolve the problem at it own discretion providing it could contain the threat to its own territorial waters E. permitted to hold the commercial offenders liable only if they were citizens of that particular nation