In which two cases should a developer use child price lists?

Child price lists are ideally used in scenarios where differentiated pricing strategies are required. For example: A. Creating pricing for different regions: Child price lists can be used to manage region-specific pricing, accommodating different currencies, tax rates, and market conditions. D. Creating pricing for products that are only available to certain customers using context rules: Child price lists can help manage pricing that needs to vary based on specific customer characteristics or purchasing conditions, which can be defined using context rules. This allows for targeted pricing strategies that cater to niche market segments or specific customer groups.