Which sentence contains an incorrectly punctuated appositive?

A.
Louis Armstrong, a pioneering jazz trumpet player, was born in New Orleans.

B.
Mrs. Ramirez, my art teacher, is from Argentina.

C.
The popular author Dr. Seuss wrote The Cat in the Hat in 1957.

D.
My father an expert in the field of astronomy recently discovered a comet.

Question

Which sentence contains an incorrectly punctuated appositive?
 
 A.
Louis Armstrong, a pioneering jazz trumpet player, was born in New Orleans.
 
 B.
Mrs. Ramirez, my art teacher, is from Argentina.
 
 C.
The popular author Dr. Seuss wrote The Cat in the Hat in 1957.
 
 D.
My father an expert in the field of astronomy recently discovered a comet.

anonymous · Answer

i am thinking d

anonymous · Answer

A is right because the sentence still makes sense if you don't read what is in the parenthesis, so is B. C is also right because Dr.Seuss(the subject) is in the middle of the sentence, so D is correct.

anonymous · Answer

I mean D is correct in that it is the incorrect sentence :)

anonymous · Answer

it's D .