Which sentence uses commas correctly?

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

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

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

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

Question

Which sentence uses commas correctly?	
 
 A.
Volcanoes spew molten rock and, they mostly exist along the Pacific Rim.
 
 B.
The blue whale is the largest animal on Earth and it is larger than any of the prehistoric dinosaurs.
 
 C.
Seaweed floats in the ocean, and some kinds can be harvested for food.
 
 D.
Computers are useful tools, and, they are becoming more powerful every year.

the_mobster · Answer

This is an English Question

afrodiddle · Answer

When using "and" there should be no commas.

anonymous · Answer

oh

afrodiddle · Answer

The only one that makes sense is "B" which has no commas at all.

anonymous · Answer

thank you be careful theres people who dont likke it when you give a direct answer