Which of the following is called the twin planet of Earth?

Options

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

Explanation

To solve the question "Which of the following is called the twin planet of Earth?", we can follow these steps:

### Step 1: Understand the term "twin planet"
The term "twin planet" refers to a planet that shares similar characteristics with Earth, such as size, mass, and composition.

### Step 2: Analyze the options given
The options provided are:
1. Jupiter
2. Saturn
3. Venus
4. Mars

### Step 3: Compare each option with Earth
- **Jupiter**: This planet is much larger than Earth and has a different composition, primarily made of gas.
- **Saturn**: Similar to Jupiter, Saturn is also a gas giant and significantly larger than Earth.
- **Venus**: Venus is very similar in size and mass to Earth. It has a rocky composition and is often referred to as Earth's twin due to these similarities.
- **Mars**: Mars is smaller than Earth and has a different atmosphere and composition.

### Step 4: Identify the correct answer
From the analysis, Venus is the only planet that closely resembles Earth in terms of size, mass, and composition. Therefore, the correct answer is **Venus**.

### Final Answer
The twin planet of Earth is **Venus**.

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