To share in a customer's account, which arrangement must be made?

• A. A sole proprietary agreement
• B. A joint account with the customer
• C. A power of attorney
• D. A guarantee contract

Answer: (B)

Sharing in a customer's account requires a joint account with the customer. This arrangement puts both parties on the same account, giving them shared ownership and the right to trade or manage the assets together, with the account terms explicitly allowing both names to participate. A sole proprietary agreement would put control with one person only, not shared ownership. A power of attorney lets someone act for the customer but does not create joint ownership of the account. A guarantee contract isn’t related to account access or sharing trading rights.