While it is unclear which four choices you have, since there are only eight planets, they can all be listed in the order of size and you can determine which one is the largest of those:
Horseisle answer: Neptune -ThePrancingPony from grey server
The 4 largest planets in order from biggest to smallest are:JupiterSaturnUranusNeptune
The 4 largest planet in our solar system are Jupiter , Saturn , Uranus, and Neptune
Neptune > Earth > Mars > Mercury Largest ---> Smallest
Gas giants are the largest planets we know of.
Earth but Venus is almost the same size
In order they are : Mercury , Venus , Earth , Mars.
Of the planets within our own solar system, Venus is 6th largest out of eight planets.
Earth is the largest and most massive of the four inner or terrestrial planets. Its surface gravity is therefore the highest of the four.
The largest planets are the four gas giants, which are Jupiter, Saturn, Uranus and Neptune.
Your question is confusing but when you say "the two largest planets" I'm thinking you are talking about Saturn and Jupiter, the largest planets in our solar system. So I think my answer is our sun.
4 Planets have rings Neptune Uranus Saturn Jupiter Jupiter has a very thin ring and you uassily can't notice it Saturn has the largest ring
Jovian planets are: -gaseous -farthest planets from the sun -largest planets