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An enterprise risk manager at a large US-based bank is reviewing the bank's stress testing and scenario analysis approaches to recommend potential improvements. The manager prepares a presentation describing some benefits of stress testing and scenario analysis as well as the regulatory and historical context of these two approaches. Which of the following statements is correct?
A
Sensitivity testing involves substituting several key variables with alternative variables to explore risk model results under stressful conditions.
B
Scenario analysis is used to model the effects that abnormal events and events with no historical data could have on the bank's performance.
C
In the Comprehensive Capital Analysis and Review (CCAR) stress test, banks with assets above USD 50 billion are limited to the use of a single severely adverse scenario developed by supervisors.
D
Scenario analysis that included the assessment of the impact of cumulative exposures across multiple business lines were widely used across the banking industry even prior to the 2007-2009 financial crisis.