The specific format followed in expressing a number in scientific notation is A×10ⁿ. Express the following in scientific notation: 0.000000771.

• A. 7.71×10⁻⁴
• B. 7.71×10⁻⁵
• C. 7.71×10⁻⁶
• D. 7.71×10⁻⁷

Answer: (D)