(72)In order to give all relevant information to investors, it is appropriate to require investment firms providing investment advice to disclose the cost of the advice, to clarify the basis of the advice they provide, in particular the range of products they consider in providing personal recommendations to clients, whether they provide investment advice on an independent basis and whether they provide the clients with the periodic assessment of the suitability of the financial instruments recommended to them. It is also appropriate to require investment firms to explain to their clients the reasons for the advice provided to them.