Improved transportation and medicine were the two primary factors that increased European exploration and interests in interior Africa in the late 1800s.
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To allow the U.S. to lend military equipment and supplies to any nation.
The best and most correct answer among the choices provided by your question is the first choice or letter A which is "Iran hostage crisis."
The Iran hostage crisis<span> was a diplomatic crisis between </span>Iran<span> and the</span>United States<span>. 52 American diplomats and citizens were held hostage for 444 days (November 4, 1979, to January 20, 1981) after a group of Iranian students belonging to the </span>Muslim Student Followers of the Imam's Line<span>, who supported the </span>Iranian Revolution<span>, took over the </span>U.S. Embassy<span> in </span>Tehran.
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