Why is it important to remember that a terrorist group took out the attack on 9-11 and not a religious group or ethnic group? I NEED HELP ASAP

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