Which statements about the formation of the solar system are true and in a correct order?
A.
A black hole collapsed to form the sun; small planetary objects formed; small planetary objects collided with each other to form larger objects.
B.
Most of the dust and gas contracted into a central mass-the Sun; half the mass of the cloud condensed to form Jupiter; asteroids and comets crashed into the sun to form the smaller planets.
C.
A spinning cloud of dust began to compress to form the sun; small planetary objects formed; hydrogen and helium became concentrated in the outer solar system to form the outer planets.
D.
Gravitational force held the newly formed planets around the sun; small planetary objects formed; hydrogen and helium became concentrated in the outer solar system to form the outer planets.
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