Explanation:

- Option 1: Microfinance

- Correct Answer

- Offers small loans and financial services to poor and low-income families.

- Aims to empower individuals who don't have access to traditional banking services.

- Option 2: Commercial Mortgage

- Used by businesses to finance purchase of commercial property.

- Not typically focused on low-income households.

- Option 3: Invoice Financing

- Enables businesses to borrow money against amounts due from customers.

- Not directly related to individual low-income financial services.

- Option 4: Personal Finance

- General category that includes managing personal budget and investments.

- Not specifically tailored to low-income or poor households.