Please answer parts b. and c.

7. The CAE of PJS Company is working with senior management and the board to develop a combined assurance model and has asked you for advice. More specifically, he has asked you to respond to the following questions: a. In a combined assurance model, should the internal audit function postpone assurance engagements in areas of the company for which other assurance providers have already planned assurance activities? b. What factors might influence the CAE's decision to postpone an assurance engagement? c. What services might the internal audit function provide in lieu of performing an assurance engagement