Answer: Actual losses exceeding expected losses

**Explanation:** Banks need to set aside capital for different types of losses: - **Expected losses**: These are covered by provisions and pricing. Expected losses are the average losses that a bank anticipates will occur over time and are typically priced into the products and services. - **Unexpected losses**: This is what regulatory capital is primarily designed to cover. Unexpected losses represent the volatility around expected losses. - **Actual losses exceeding expected losses**: This is the correct answer. Banks need to set aside sufficient capital to cover the scenario where actual losses exceed the expected losses. This represents the tail risk or extreme loss scenarios that regulatory capital requirements are designed to address. - **All operational losses**: While operational losses are important, capital is set aside for all types of losses (credit, market, operational) that may exceed expected levels. The key insight is that regulatory capital requirements are designed to ensure banks have sufficient resources to absorb losses in the event that actual losses are greater than the statistically expected losses.

Author: LeetQuiz Editorial Team