Out of the following the best safety measure against lightning strikes is

Options

A. Stand on the terrace of the building
B. Take shelter under a tree
C. Run across an open high ground
D. Take shelter inside a metal box

Answer

To determine the best safety measure against lightning strikes, we need to analyze the options provided and understand the principles of lightning safety.

### Step-by-Step Solution:

1. **Understanding Lightning Strikes**:
- Lightning is a natural electrical discharge that occurs during thunderstorms. It can strike buildings, trees, and other tall structures.

2. **Evaluating Safety Measures**:
- The options provided include standing on the terrace of a building and possibly other measures (though not explicitly mentioned in the transcript).
- Standing on the terrace of a building is not safe because it exposes a person to the risk of being struck by lightning.

3. **Identifying Safer Alternatives**:
- The safest place during a lightning storm is indoors, away from windows and doors.
- Avoiding tall structures, open fields, and water bodies is also crucial.

4. **Conclusion**:
- The best safety measure against lightning strikes is to stay indoors and avoid being in open areas or on high ground.

### Final Answer:
The best safety measure against lightning strikes is to stay indoors.

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