4 During stage 3, the operational staff that handle course bookings asked for the project scope to be increased to include an online booking function. This additional product has been agreed as it will enable them to process bookings more quickly and accurately. Is this an appropriate application of the 'focus on products' principle. and why? a} Yes, because the goal is to seek opportunities to implement improvements after the life of the project. b} Yes, because the project needs to fulfil stakeholder expectations by delivering the products required. 0) No, because there needs to be an understanding of the products from the start of the project. d} No, because existing product descriptions provide a means to estimate effort for planning