Select the sentence that is punctuated correctly.


A) My ancient computer a Macbook that is ten years old is definitely on its last legs.
B) My ancient computer a Macbook that is ten years old is definitely on its last legs.
C) My ancient computer a Macbook that is ten years old is definitely on its last legs.
D) My ancient computer, a Macbook that is ten years old, is definitely on its last legs.