The internal model-based approach in the 1996 Amendment to the Basel I accord A. involved calculating expected shortfall (ES) measure & converting it into capital requirement B. involved calculating value-at-risk (VaR) measure & converting it into capital requirement C. uses risk measures with 10-day time horizon & 99% confidence level D. uses risk measures with 1 year time horizon & 99.9% confidence level Stressed VaR introduced in Basel 2.5 A. addresses issues with common historical simulation approach to calculate VaR B. is calculated by basing VaR calculations on 250-day period of stressed market conditions C. is used instead of the usual VaR based on previous one to four years of market movements D. leads to capital requirements no more than double those under the previous market risk amendment Basel III A. complements Basel 2.5 with focus on credit risk, capital definition and liquidity risk B. places less focus on common equity (CET1) C. requires total Tier 1 capital (Tier 1 equity capital plus additional Tier 1 capital) to be at least 6% of risk-weighted assets at all times D. requires total capital (total Tier 1 plus Tier 2) to be at least 10.5% of risk-weighted assets at all times