Quota samples are typically selected so that the distribution of a characteristic in the sample matches the distribution of that same characteristic in the population. With respect to the representativeness of quota samples, it can thus be said thata. a quota sample may be very far off the mark with respect to other important characteristics likely to influence the result but which were not used as controls when selecting the sample. b. the fact that the distribution of the characteristic in the sample parallels the distribution in the population does not guarantee that the sample is representative. c. the quota assigned each field worker should exactly mirror the distribution of the control characteristic in thepopulation. d. Both a and b. e.a, b, and c.