Answer : Option D gas giants
Step-by-step explanation :
- A gas giant is a plant that is large in size and is mainly made up of hydrogen and helium and hence, the name.
- They are also known as failed stars as their composition is the same as that of stars.
- They have a very small rocky core.
- Jupiter, Saturn, Uranus and Neptune are the four gas giants that are present in our solar system as they have the characteristics described above.