Which of the following sentences is punctuated correctly? A.
The ocean, floor contains mountains canyons and plains even larger than those on land
B.
The ocean floor contains mountains, canyons, and plains even larger than those on land.
C.
The ocean, floor contains mountains, canyons, and plains even larger than those on land
D.
The ocean, floor contains mountains canyons and plains even larger than those on land.

- "the basic difference between keywords and subjects is that subjects (or "subject headings") have been predetermined, while keywords have not. a keyword is an easy place to start because you can use any word that seems to fit your search; this is called "natural language" searching."

a simple sentence must have at least one dependent clause.

i believe it’s the first one, but it could be the second! not the third or fourth.

explanation:

idk,video game or film