Choose the correctly punctuated sentence.

Oil which is lighter than water, rises to the surface
Oil, which is lighter than water, rises to the surface.
Oil which is lighter than water; rises to the surface
Oil which is lighter, than water rises, to the surface.

Oil, which is lighter than water, rises to the surface.

How is the meaning of the second text different from the first?

The best thing about being at the beach is the sunrise. I love the sea air and walking along the shore. I love laying in the sun and floating in the ocean. I love grilling fish outside in the afternoon. At night, I like going to bed and reading a book by flashlight.

The best thing about being at the beach is…going to bed and reading a book by flashlight.
The second text makes it sound like the speaker stays in bed all day.
The second text makes it sound like the speaker only visits the beach at night.
The second text does not convey a sense that the speaker really enjoys being at the beach.
The second text conveys a sense that the speaker really loves being at the beach.

The second text conveys a sense that the speaker really loves being at the beach.

The correctly punctuated sentence is: "Oil, which is lighter than water, rises to the surface."