Which sentence uses commas correctly?

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

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

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

D.
Seaweed floats in the ocean, and some kinds can be harvested for food.
I think it is d

Question

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

likeabossssssss · Answer

@soprano.h.d0816 may u plz help?

rebeccaxhawaii · Answer

say it aloud which one sounds right?

likeabossssssss · Answer

d does to me

soprano.h.d0816 · Answer

I believe you are right

fredoneedshelp · Answer

It's D because it shows the correct commas, the others sound like you need to stop your heartbeat.

fredoneedshelp · Answer

Medal for medal?