
Explanation:
Option A is correct. Under stress testing scenarios, market shocks are often large and severe. For complex derivatives, linear risk approximations (like delta and gamma) break down under such extreme moves. Therefore, a full-revaluation approach is necessary to accurately capture the non-linearities and cross-effects in pricing.
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A
Use a full-revaluation approach to model the bank’s complex derivative exposures.
B
Use minimum required regulatory capital ratios as the initial trigger for potential contingency capital actions to be taken.
C
Assume that the bank will exit its riskiest lines of business and reduce its expenses during the stress test horizon period.
D
Model the loss given default of the bank’s loan portfolio using a weighted-average approach at the aggregate portfolio level.