What key role does the IRS play concerning personal taxes?

The IRS, or Internal Revenue Service, is fundamentally tasked with overseeing individual tax policy and resources, making it crucial for the management of personal taxes. This includes administering federal tax laws, including income, corporate, estate, gift, and excise taxes, essentially governing how taxes are collected and processed from individual taxpayers. The agency also provides resources such as tax forms, instructions, and guidance to help individuals comply with tax laws.

Understanding the role of the IRS in this context is essential, as it reflects the agency's responsibility for tax-related inquiries, audits, and enforcement actions pertaining to individual tax filings. This oversight encompasses everything from ensuring individuals accurately report their income to providing information about deductions, credits, and overall tax policy changes that impact taxpayers.

The other options pertain to functions outside of the IRS's established role concerning personal taxes. The IRS does not specialize in investment opportunities or manage business regulations, nor is it responsible for administering social security benefits; those responsibilities lie with different government entities. Hence, the correct choice highlights the IRS's primary function related to individual taxation.