Which sentence is punctuated correctly?

(1 point)
Responses

Our sun is a star, the stars we see in the night sky are actually far-away suns.
Our sun is a star, the stars we see in the night sky are actually far-away suns.

Our sun is a star; astronomy is the study of objects in the sky.
Our sun is a star; astronomy is the study of objects in the sky.

Our sun is a star; the stars we see in the night sky are actually far-away suns.
Our sun is a star; the stars we see in the night sky are actually far-away suns.

Our sun is a star, astronomy is the study of objects in the sky.

Our sun is a star; the stars we see in the night sky are actually far-away suns.