The nebular hypothesis suggests that:
1. the moon is derived from a protoplanet.
2. the earth was formed by a cosmic explosion, a "big bang".
3. all bodies in the solar system formed from an enormous gas cloud.
4. earth's moon is an asteroid captured by the earth's gravity.
5. galaxies such as the milky way form independent of one another.

3. all bodies in the solar system formed from an enormous gas cloud.

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.