Priya grants her brother trading authority over her non-registered investment account.

Trading authority is limited authority. It normally permits the authorized person to place transactions on the specified account; it does not automatically permit disclosure of all client records, tax documents, beneficiary designations, estate information, or broader financial planning data. The planner must protect confidentiality unless the client provides clear consent or a valid legal authority requires disclosure. Option A overstates the scope of trading authority. Option B still assumes the planner may disclose account details without confirming whether that disclosure is within the authority granted. Option C confuses identity verification with authority; confirming who someone is does not prove that person is entitled to confidential information. The proper response is to explain the limitation, ask Priya to contact the planner directly, and obtain written authorization if she wants her brother involved in broader planning. The file should clearly record what authority exists, what was requested, and what was declined. References/topics: confidentiality, third-party authorization, trading authority, client information protection.

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