Which statement best describes both nebulae and galaxies? f. Nebulae are large clouds of gas and dust that are sometimes able to produce light and galaxies are spheres of plasma that orbit a star.

G.
Nebulae are large spheres of gas that produce their own light by fusion and galaxies are the birthplace of stars.

H.
Nebulae are large spheres of gas that orbit the Earth in an elliptical pattern and galaxies are systems of stars, gas and dust held together by gravity.

J.
Nebulae are large clouds of dust and gas that are the birthplace of stars and galaxies are systems of stars, gas and dust held together by gravity.