10. Consider the following short case as you respond to the next two questions: ABC Consulting's employees include management, consultants and office staff. The company accepts engagements related to internal control design and evaluation, as well as enterprise risk management plans. A customer can purchase the two services independently of one another. The office staff bills clients on a monthly basis with terms of 2/10, n/30. All consulting clients must sign a contract, which is also signed by an ABC manager. One member of ABC's management team assigns st one consultant to work with the customer until the engagement is complete. Consultants assigned to multiple engagements simultaneously, but every consultant must always be at lea can be working on at lea st one engagement. Each client may have only one contract with ABC at a time. In a REA model of the case, events would include: A. Sign contract B. Assign employees C. Bill customer D. All of the above 11, consider the case shown in #10 above: How many external agents would be depicted in the first column of a REA model of the case? Zero 8. One C. Two D. Three