The stars appearing ........... have highest temperature.

Options

A. red
B. blue
C. yellow
D. white

Explanation

**Step-by-Step Solution:**

1. **Understanding Star Colors and Temperatures:**
- Stars emit light in different colors, which correspond to their surface temperatures. The color of a star can indicate how hot it is.

2. **Identifying Star Colors:**
- The common colors of stars include red, yellow, white, and blue. Each color represents a different temperature range.
- Red stars are the coolest, followed by yellow stars, then white stars, and finally blue stars, which are the hottest.

3. **Determining the Hottest Stars:**
- Among these colors, blue stars have the highest temperature. Their surface temperature can reach around 9400K (Kelvin).

4. **Conclusion:**
- Therefore, the stars appearing blue have the highest temperature compared to red, yellow, and white stars.

**Final Answer:**
- The stars appearing **blue** have the highest temperature.

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