A planet which is called born sister of earth is

Options

A. Mercury
B. Venus
C. Mars
D. Jupiter

Explanation

To determine which planet is referred to as the "twin sister" of Earth, we can follow these steps:

### Step 1: Understand the term "twin sister of Earth"
The term "twin sister of Earth" suggests that the planet in question shares many similarities with Earth, such as size, density, and composition.

### Step 2: Identify the planets in our solar system
The planets in our solar system are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. We need to focus on the inner planets (Mercury, Venus, Earth, and Mars) as they are more similar to Earth.

### Step 3: Compare the inner planets
- **Mercury**: Closest to the Sun, very small, and has a very thin atmosphere.
- **Venus**: Similar in size and density to Earth, has a thick atmosphere, and is often called Earth's "sister planet."
- **Mars**: Smaller than Earth, has a thin atmosphere, and is known for its red color.

### Step 4: Analyze the similarities
Among the inner planets, Venus is the most similar to Earth in terms of size, density, and chemical composition. Both planets have similar geological features and are often studied together.

### Conclusion
Based on the analysis, the planet that is referred to as the "twin sister of Earth" is **Venus**.

---