Why did people stay away from mountains and settled mostly in plains and hills?

Karl marx spent much of his life attempting to describe and understand how capitalism works. in one particularly vivid passage, he described in this way the turbulence he saw as inherent in capitalism: “all that is solid melts into air, all that is holy is profaned, and man is at last compelled to face with sober senses his real condition of life and his relations with his kind.” what sort of relationships did he think his readers had with other people? a. relationships based on social bonds and solidarity b. cultural relationships c. economic relationships d. relationships of community and religion

A(n) is an alliance or collection of parties.

Ialready know the answer to this question but i wanted to ask you guys to see if you know. who started the okinawan karate style ryukyu kempo? when year was it found?