Which of the following sentences correctly punctuates the pause?
O A. Last night we ate at Little Nero 's- the one downtown and I ran into some old friends.
O B. Last night we ate at Little Nero's ... the one downtown and I ran into some old friends.
O C. Last night we ate at Little Nero's the one downtown-and I ran into some old friends.
O D. Last night we ate at Little Nero's ... the one downtown ... and I ran into some old friends.