<span>. lines the inside of hollow organs
</span>
<span>covers the outside of organs
</span>
<span> is found in the digestive tract</span>
The primary reason given by U.S. leaders to justify military involvement in Vietnam was that it would "<span>d. keep communism from spreading throughout the region," since this was part of the US policy of "containment" during the Cold War. </span>
The correct answer is B, vote. At the end of the war, it was because of the 14th and 15th amendment to the Constitution.
