Which sentence does not contain any errors in comma usage?

A.
Walking through the dim house Joe bumped into a table.

B.
On the kitchen counter, you'll find a stack of unopened letters.

C.
Well I'm not confident that's clean.

D.
Whenever you are out, in the sun, you should consider wearing sunscreen.

Question

Which sentence does not contain any errors in comma usage?
	
	
 
A.
	Walking through the dim house Joe bumped into a table.
	
 
B.
	On the kitchen counter, you'll find a stack of unopened letters.
	
 
C.
	Well I'm not confident that's clean.
	
 
D.
	Whenever you are out, in the sun, you should consider wearing sunscreen.

anonymous · Answer

Why don't A and C have any commas? O_o The answer is B.