The number of significant figures in 0.06900 is

Options

A. A. 5
B. B. 4
C. C. 2
D. D. 3

Explanation

To determine the number of significant figures in the number 0.06900, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the number**: We start with the number 0.06900.

2. **Locate the decimal point**: The decimal point is present in the number, which indicates that we need to consider the digits following it.

3. **Identify leading zeros**: The zeros before the first non-zero digit (which is 6 in this case) are considered leading zeros. These leading zeros are not significant. In 0.06900, the leading zeros are the two zeros before the 6.

4. **Identify non-zero digits**: The digits 6 and 9 are non-zero digits, and they are significant.

5. **Identify trailing zeros**: The zeros that come after the 9 (the two zeros in 0.06900) are considered significant because they are to the right of the decimal point and follow a non-zero digit.

6. **Count the significant figures**: Now, we count the significant figures:
- The significant digits are 6, 9, and the two trailing zeros (00).
- Therefore, the total number of significant figures is 4.

### Conclusion:
The number of significant figures in 0.06900 is **4**.