Which sentence does not contain any errors in comma usage?
 A.
 In a plane or on a boat, I often get a bit woozy.
 B.
 In a plane, or, on a boat, I often get a bit woozy.
 C.
 In a plane or on a boat I often get a bit woozy.
 D.
 In a plane, or on a boat, I often get a bit woozy.