According to Oracle documentation3, when using FBDI template to load Chart of Account Mapping Rules for their Primary and Secondary ledgers, you can create, update, and delete account rules for a chart of accounts mapping, and you can create, update, and delete segment rules for a chart of accounts mapping. FBDI enables you to import chart of accounts mapping rules from a spreadsheet template into General Ledger. You can use FBDI to manage both account rules and segment rules for a chart of accounts mapping. Therefore, options C and D are correct. Option A is incorrect because you can download the template from other pages besides the Manage Chart of Accounts Mappings page. Option B is incorrect because FBDI does not support external integration using REST services.