One major difference between the experimental method and ethnographic research is that in most cases it is not possible to repeat an ethnographic study to check its validity, but well-designed experiments can be repeated. In other words, ethnographies lack . Group of answer choices

Which statement best represents an economic weakness of the national government under the articles of confederation? a. the national government was unable to collect taxes. b. national and state taxes combined were too high for most services to pay. c. congress set different tax rates for each state, leading to conflict. d. state refused to collect taxes on behalf of the national government