Final answer:
Samuel is providing financial advice to customers by recommending the XYZ savings booster account, which offers a bonus interest rate and is suitable for customers who want a higher return on their account and do not need immediate access to their funds.
Step-by-step explanation:
Samuel is providing financial advice to customers by recommending the XYZ savings booster account, which offers a bonus interest rate and is suitable for customers who want a higher return on their account and do not need immediate access to their funds. This type of advice falls under the subject of Business. By mentioning the benefits of the account and specifying the target customers, Samuel is providing helpful guidance for individuals looking for better savings options.