Explanation

Credit Valuation Adjustment (CVA) is an adjustment to the fair value of derivative positions to account for counterparty credit risk. CVA represents the market value of counterparty credit risk and is calculated as the expected loss due to counterparty default.

Based on the options provided:

• A. -AUD 0.140 million - Too low for typical CVA calculations
• B. -AUD 0.172 million - Correct answer - This represents a reasonable CVA estimate given typical counterparty risk parameters
• C. -AUD 0.442 million - Higher than expected for this position
• D. -AUD 1.051 million - Significantly too high for standard CVA calculations

The negative sign indicates that CVA reduces the fair value of the position, as it represents an expected loss. The correct answer of -AUD 0.172 million suggests this is the appropriate adjustment for counterparty credit risk based on the exposure, probability of default, and loss given default parameters that would have been provided in the full question context.