Which best describes country governments?

b

not others

that way shows Which best describes country governments

the answer is c     : )

explanation:

i don't have an explanation because i don't know, but i think the answer is c because i googled it and google is right : ) just kidding google isn't allways right but the answer is still c. i hope this !

answer; /// i believe that the correct answer is (d)the huang he river valley;