which sentence is punctuated correctly
Be careful David, or you'll slip on the ice.
Be careful, David or you'll slip on the ice.
Be careful, David, or you'll slip on the ice.
Be careful David or you'll slip, on the ice.
I think it is the third one.

Question

which sentence is punctuated correctly 
Be careful David, or you'll slip on the ice.
Be careful, David or you'll slip on the ice. 
Be careful, David, or you'll slip on the ice.
Be careful David or you'll slip, on the ice.
I think it is the third one.

anonymous · Answer

This one is a little tricky. Both 1 and 3 are correct, but only a punctuation enthusiast would care about the difference. Give me a minute to think about this.

anonymous · Answer

Okay I got it. It is the first one.

anonymous · Answer

are you sure?

anonymous · Answer

Yes I am sure. Commas are used to separate the different clauses in a sentence. You wouldn't put a comma before and after a name as shown in the third option.

anonymous · Answer

oh okay makes sense, thank you