In terms of musical meter, what do my beautiful hangai land (mongolian long song), anush garun ("sweet spring," for armenian duduk), and rag des (for north indian sitar) all have in common?

They all have free rhythm.

Explanation:

Any rhythmic motion which lacks a metrical structure is known as the Free Rhythm. Though it is rarely observed in Western music it is found in Western art music of the 20th and the 21st century. The presence of free rhythm can be seen in indigenous religious, art and folk music throughout the world. The free-rhythm is more popular in Asia, Eastern Europe, the Middle East and parts of Africa.

the answer is a. laws were enacted in the aftermath of the plot to make it harder to free slaves,increasing sectionalism

deflation   hope this