What is the relationship between the number of significant figures in a number and the digits in the mantissa of its logarithmic form?

• A. The number of significant figures in the original number equals the number of digits in the mantissa.
• B. The number of significant figures in the original number is one less than the number of digits in the mantissa.
• C. The number of significant figures in the original number is unrelated to the number of digits in the mantissa.
• D. The number of significant figures in the original number is double the number of digits in the mantissa.

Answer: (A)