In which incident would roosevelt have used the corollary to defend his actions?
(a) his approval of england colonization of india and egypt
(b) the united nations participation in a conference to end french-germany rivalry in morocco
(c) his support for the open door policy for trade in china
(d) this negotiating an informal understanding between united states and japan to end unwanted immigration
(e) the aiding of panamanian rebels against the columbian government