Question

Which sentence uses commas correctly?

A.
Computers are useful tools, and, they are becoming more powerful every year.

B.
The blue whale is the largest animal on Earth and it is larger than any of the prehistoric dinosaurs.

C.
Volcanoes spew molten rock and, they mostly exist along the Pacific Rim.

D.
Seaweed floats in the ocean, and some kinds can be harvested for food.

Answer 1

easy question i just suck on english

Answer 2

Well not B.

Answer 3

yeah

Answer 4

So what else can you rule out?

Answer 5

its d

Answer 6

@michaelbp It is important for them to work through it.

Answer 7

Yes, @michaelbp @sofia.gulick is right. Please do not give direct answers.