What specific type of tax credit does Thomas qualify for regarding his retirement savings?

Thomas qualifies for the Retirement Savings Contributions Credit because this tax credit is specifically designed to encourage individuals to save for retirement. It is available for contributions made to qualified retirement accounts, such as a 401(k) or an IRA. The amount of the credit can vary based on the taxpayer's income and filing status; it can be worth 10%, 20%, or 50% of contributions up to a specified limit, providing valuable savings to encourage long-term financial planning and security.

The other options pertain to different areas of tax benefits that do not directly relate to retirement savings. The Retirement Income Tax Credit is not a recognized tax credit in the context of retirement savings contributions. The Additional Child Tax Credit is related to dependent children and provides financial relief based on the number of qualifying children, while the Dependent Care Tax Credit focuses on expenses incurred for the care of dependents. Each of these credits serves different purposes and does not apply to contributions made for retirement savings specifically.