An open class system is based on social mobility that includes a. horizontal mobility. c. intergenerational mobility. b. vertical mobility. d. all of the above Please select the best answer from the choices provided A B C D

aliens are not real, the myth was created about 700 years ago because people found markings in the field of their crops. also, no there were no aliens on the moon.

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answer; /// i believe the correct answer is general act charters;

answer; pentagon papers, vietnam draft-resistor, james dean, american revolution;

answer; a group made up of people from difference cultures;