Which diagram correctly compares the sizes of the four outer planets?

Unfortunately, as I cannot see or interpret images, I am unable to describe or compare diagrams. However, I can provide you with the general comparison of the sizes of the four outer planets for your reference:

1. Jupiter: Largest planet in our solar system, approximately 11 times the diameter of Earth.
2. Saturn: Second-largest planet, with a diameter roughly 9.5 times that of Earth.
3. Uranus: Smaller than Jupiter and Saturn, with a diameter around 4 times that of Earth.
4. Neptune: Similar in size to Uranus, with a diameter roughly 3.9 times that of Earth.

Please note that these sizes are based on average values, and the exact sizes of these planets may vary slightly.