Which of the following statements are correct regarding the planet Jupiter?
(I) It is the biggest planet of the solar system.
(ii) It is the least dense planet of the solar system.
(iii) It has the maximum number of natural satellites.
(iv) It is the brightest planet of the solar system.

Options

A. (i) and (iv)
B. (ii) and (iv)
C. (i) and (iii)
D. (ii) and (iii)

Explanation

To determine which statements about the planet Jupiter are correct, we will analyze each statement one by one.

**Step 1: Analyze Statement I**
- Statement I: "It is the biggest planet of the solar system."
- Jupiter is indeed the largest planet in our solar system, with a diameter of about 86,881 miles (139,822 kilometers). Therefore, this statement is **correct**.

**Step 2: Analyze Statement II**
- Statement II: "It is the least dense planet of the solar system."
- Jupiter is not the least dense planet; that title belongs to Saturn. Saturn has a lower density than water, making it the least dense planet. Therefore, this statement is **incorrect**.

**Step 3: Analyze Statement III**
- Statement III: "It has the maximum number of natural satellites."
- Jupiter was once known to have the most natural satellites, but recent discoveries have shown that Saturn now has more. As of the latest research, Saturn has 82 moons, while Jupiter has around 79 or 80. Therefore, this statement is **incorrect**.

**Step 4: Analyze Statement IV**
- Statement IV: "It is the brightest planet of the solar system."
- The brightest planet in our solar system is Venus, not Jupiter. Jupiter is bright, but it does not surpass Venus in brightness. Therefore, this statement is **incorrect**.

**Conclusion:**
The only correct statement regarding Jupiter is Statement I: "It is the biggest planet of the solar system."

### Summary of Correct Statements:
- Correct: I
- Incorrect: II, III, IV