What is a primary benefit of using a financial calculator?

The primary benefit of using a financial calculator lies in its ability to estimate loan payments and investment growth. Financial calculators are specifically designed to perform complex mathematical calculations related to finance, such as determining the future value of investments, calculating monthly mortgage payments, and analyzing the impact of interest rates on loans or investments. This functionality allows users to make informed financial decisions based on their specific scenarios and helps in planning for financial goals.

While simplifying tax filing processes, creating budgets, and tracking expenses are important aspects of personal finance, these tasks typically require different tools or software rather than the specialized capabilities of a financial calculator. Therefore, the reason B is the correct answer is that it highlights the unique and valuable role that financial calculators play in managing and analyzing financial data effectively.