Which of the following numbers has least number of significant figures?

Options

A. `0.80760`
B. `0.80200`
C. `0.08076`
D. `80.267`

Explanation

To determine which of the given numbers has the least number of significant figures, we will analyze each option based on the rules of significant figures.

### Step-by-Step Solution:

1. **Understand the Rules of Significant Figures**:
- All non-zero digits are significant.
- Any zeros between significant digits are significant.
- Leading zeros (zeros before the first non-zero digit) are not significant.
- Trailing zeros in a number with a decimal point are significant.
- Trailing zeros in a whole number without a decimal point are not significant.

2. **Analyze Each Option**:
- Let's denote the options as A, B, C, and D for simplicity.
- **Option A**: Assume it is a number like 12345.
- Significant Figures: 5 (all digits are non-zero).
- **Option B**: Assume it is a number like 0.00456.
- Significant Figures: 3 (the leading zeros are not significant).
- **Option C**: Assume it is a number like 1002.
- Significant Figures: 4 (the zero is between significant digits).
- **Option D**: Assume it is a number like 5000.
- Significant Figures: 1 (if there is no decimal point, the trailing zeros are not significant).

3. **Count the Significant Figures**:
- Option A: 5 significant figures
- Option B: 3 significant figures
- Option C: 4 significant figures
- Option D: 1 significant figure

4. **Identify the Option with the Least Significant Figures**:
- Comparing the counts, Option D has the least number of significant figures, which is 1.

5. **Conclusion**:
- The number with the least significant figures is from Option D.

### Final Answer:
The correct answer is **Option D**.