To find out which planet's diameter is about four times larger than Venus, we first need to calculate four times the diameter of Venus.
The diameter of Venus is 12,100 km.
Now, calculate four times this diameter: \[ 4 \times 12,100 \text{ km} = 48,400 \text{ km} \]
Next, we compare this value with the diameters of the other planets listed.
Here are the diameters of the relevant planets:
- Mercury: 4,800 km
- Earth: 12,800 km
- Mars: 6,700 km
- Jupiter: 143,000 km
- Saturn: 120,000 km
- Uranus: 51,100 km
- Neptune: 50,000 km
From this list, Jupiter has a diameter of 143,000 km, which is the only value significantly larger than 48,400 km.
Therefore, the answer is Jupiter.
However, it seems like "Jupiter" isn't one of the response options you've provided. Based on the options given (Neptune, Mercury, Earth, Mars), none of these planets have a diameter that is four times that of Venus.
If you meant the closest in size, it would be Neptune with a diameter of 50,000 km, but this is not four times the size of Venus.
If your question is based on the initial request to choose one of the options, I would say that among these options, Neptune would be the most appropriate one, even though it doesn't meet the four times criteria.
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