Economic concern and stability
Explanation:
The economic problem, which is sometimes considered the basic or core economic problem, argues that the available resources of an economy are inadequate to satisfy all human needs and desires. Economics involves learning how money can be distributed under inadequate circumstances.
The avoidance of undue volatility of the macro economy ensures economic stability. The economy would be seen as economically stable with fairly constant production growth and low and stable inflation.
Considering that Martin Luther King was all about peaceful negotiation and solving issues with words, the only answer that fits is A. to ease tension to promote negotiation
I think that the answer is Joyfulness