10. The Head of RAHA Institute has assured its staff of supply of laptop computer for all lecturers. He has discussed with Computa Ghana for the supply of the Laptops. He has been stopped by your office as the steps are against the Act 663. You are the Project Manager for RAHA Institute, Advice the Head of Defendant on; a. Circumstances under which a single source method for procurement could be implemented b. Procedure for single source method of procurement c. Discuss the advantages and disadvantages of the method