Which of the following sentences uses commas correctly?

Carl the baseball bat, is locked in the cabinet in the basement, isn't it?
Carl, the baseball bat is locked in the cabinet, in the basement isn't it?
Carl, the baseball bat is locked in the cabinet in the basement, isn't it?
Carl the baseball bat, is locked in the cabinet, in the basement isn't it?


Answer :

Explanation:

Carl, the baseball bat is locked in the cabinet in the basement , isn't it .