Which of the following is an example of an assurance service?

Select one:

a. Green Ltd requests that its audit firm reviews compliance with key internal controls and report on any deviations.

b. The audit firm responsible for the audit of Cream Ltd provides a valuation of Cream Ltds brand names.

c. Paper Pty Ltd provides a trial balance and general ledger to an audit firm and requests that a financial report be prepared based on the information provided.

d. The board of directors of Solo Pty Ltd request a feasibility study be undertaken by its audit firm to ensure the board is aware of all the issues relating to a new product launch.