A significant limitations of market risk disclosures made under FRR No. 48 (1997) is that they need not be comparable across firms, exposures for a given firms, or time, for four reasons. Firms may disclose their exposure to each type of market risk using Tabular Formal Approach, Sensitivity Approach, and Value-at Risk Approach. Each of these approaches have strength and weaknesses. Discuss the strength and weakness of these approaches.