Calculation of the "Add-On" to the Risk-Based Capital Ratio to Measure

Calculation of the "add-on" to the risk-based capital ratio to measure operational risk

A) may be done using the Basic Indicator Approach.
B) may be done using the Standardized Approach.
C) may be done using the Advanced Measurement Approach.
D) All of these.
E) may be done using the Basic Indicator Approach and may be be done using the Standardized Approach.