Answer:
3. all bodies in the solar system formed from an enormous gas cloud.
Step-by-step explanation:
Nebular hypothesis - 
According to this theory , the planets are made up of cloud material associated with the youthful sun , that is rotating in slow motion . 
Later it was given that , all the celestial body present in the universe are composed of huge gas cloud . 
Hence, from the given options , the correct statement for the nebular hypothesis is 3.