Which technology is primarily used to improve the accuracy of calculations through formulae?

• A. Emails
• B. Spreadsheets
• C. Internet sites
• D. Video conferencing

Answer: (B)

Calculations that rely on formulae depend on a system that can store data, apply consistent rules, and update results automatically as numbers change. Spreadsheets fit this purpose because you enter data in cells and build formulas that reference those cells. They compute results instantly, apply a wide range of built‑in functions, and automatically recalculate when inputs shift, which dramatically reduces manual arithmetic errors and improves accuracy. You can also trace formulas, audit references, and protect formulas, making it easy to maintain correctness over time. The other technologies listed do not center on building and maintaining formula-based calculations: emails are for messaging, video conferencing is for communication, and internet sites may offer calculators but not the general-purpose, formula-driven data analysis that spreadsheets provide.