What is the period of revolution of Halley's comet?

Options

A. 72 years
B. 76 years
C. 82 years
D. 86 years

Explanation

**Step-by-Step Solution:**

1. **Identify the Comet:** The question is about Halley's Comet, which is a well-known comet that appears in the Earth's sky.

2. **Understand the Discovery:** Halley's Comet is named after Edmond Halley, who predicted its return in 1758. This historical context is important for understanding its significance.

3. **Determine the Period of Revolution:** The period of revolution refers to the time it takes for the comet to complete one orbit around the Sun. For Halley's Comet, this period is approximately 76 years.

4. **Visibility:** Halley's Comet is classified as a short-period comet because it returns to the vicinity of Earth every 76 years, making it visible to observers on Earth.

5. **Conclusion:** Based on the information gathered, the period of revolution of Halley's Comet is 76 years.

**Final Answer:** The period of revolution of Halley's Comet is 76 years.

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