A, enslaved persons were too valuable for southern leaders to consider emancipation
A.
<span>His crew was able to round the tip of Africa.</span>
Answer: It prevents political leaders from breaking laws to oppress citizens
Explanation:
The convention was held during a year of violence, political turbulence, and civil unrest, particularly riots in more than 100 cities following the assassination of Martin Luther King Jr. on April 4. The convention also followed the assassination of Robert F. Kennedy on June 5. Both Kennedy and Senator Eugene McCarthy of Minnesota had been running for the Democratic nomination at the time.