A.
I always order the same dessertlong dash—(lemon meringue pie).
B.
I always order the same dessert lemon meringue pie.
C.
I always order the samelong dash—dessert (lemon meringue pie).
D.
I always order the same dessertlong dash—lemon meringue pie.
D!!!!! Because the dash means adding additional information. Before the dash needs to be a complete sentence which it is in D and the dash indicates a change in the sentence. So like in the beginning the author wasn't going to tell the reader what the order always was BUT decided to change it and used a dash.
