Final answer:
Shawna should request Brian to complete a standard banking form to verify his bank account balances. The precise form name isn't provided, but it should be one that collects detailed financial information for loan application purposes.
Step-by-step explanation:
To verify an individual's claimed bank account balances during a loan application process, Shawna should have Brian complete a form that specifically requests financial information about income sources and current asset information. The form would likely be a standardized banking document used for this purpose, though without precise form names being provided in the context, it's not possible to specify whether it is Form A, B, C or D. It's essential to note that banks require such documentation in order to assess a borrower's creditworthiness and ability to repay the loan.
As part of the loan evaluation process, in addition to completing the requisite forms, the bank will also conduct a credit check to review the individual's financial history. Depending on the circumstances and the bank’s policies, additional safeguards such as a cosigner or collateral might also be required to secure the loan.