The right option is C. They imposed sanctions on Italy, because when the invasion of Ethiopia by Italy ocurred (on october 1935), the League of Nations condemned the attack and imposed economic sanctions to Italy in november 1935 due to Italy decided to cruelly attack with bombs, quimical weapons as mustard gas, and poisoning water sources to undefended and unarmed hamlets, but unfortunately the sanctions weren't effective because were lacked of support and when the sanctions were lifted in July 1936 Italy still possessed control in urban territories of Ethiopia.
