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A developer has the following requirements: * Calculate the total amount on an Order. * Calculate the line amount for each Line Item based on quantity selected and price. * Move Line Items to a different Order if a Line Item is not in stock. Which relationship implementation supports these requirements on its own?
Correct Answer: A
Why Re-Parentable Master-Detail Field? A master-detail relationship allows Line Items to roll up totals (e.g., calculate total amount) to the Order. Setting the relationship asre-parentablesupports moving Line Items between different Orders. Why Not Other Options? B: Lookup field: Does not support roll-up summary fields for calculations. C and D: Relationships in the opposite direction (Order to Line Item) do not support the required logic. References:Master-Detail Relationships:https://developer.salesforce.com/docs/atlas.en-us.object_reference. meta/object_reference/relationships_master_detail.htm