Hello there!
Your answer would be C). The bombing of a hotel in Yemen
The reason why this would be the correct answer is because this is the first thing that Osama bin Laden did to show that he is attacking America. In this terrorist attack, a group of terrorists from the " Al-Qaeda" attacked a hotel that was in Ade, Yemen. There goal during this terrorist attack was to kill United States Marines that were in the hotel at that time. This attacked was on December 29, 1992. This shows that Osama bin Laden is attacking America because he is specifically targeted U.S Marines, meaning that he is targeting America's people, or soldiers in this context.