I am not sure about my answer

14) The concept of duality means that an REA diagram must consist of: a. Two events: one economic and the other support b. Two agents: one internal and the other external c. Two activities: one give and the other receive d. All of the above 15) Which of the following is a support activity? a. Verify Availability b. Take Order c. Capture Time d. All of the above 16) Which of the following is considered a resource within the REA framework? a. Inventory b. Shipping of Products c. Receiving of goods d. All of the above 17) Value chain can best be described as: a. The organization's primary activities b. The organization's support activities C. Both A&B d. None of the above 18) Which of the following is an economic event within the REA framework? a. Verify Availability b. Receive Cash c. Take Order d. Capture Work Time 19) A payroll clerk within a given company is an example of: a. Internal Agent b. External Agent c. Both A&B d. Neither A or B 20) Which of the following best describe the purpose of REA diagrams? a. Showing the critical responsibilities, events and agents and the relationships created b. Showing the critical resources, entities and agents and the relationships created c. Showing the critical resources, events and agents and the relationships created d. Showing the critical responsibilities, entities and agents and the relationships created