Which word or abbreviation in the sentence, if any, should be followed by a comma?

Mr. Alex Jackson, CEO founded the company 10 years ago.

A.
CEO

B.
Mr.

C.
There is no error in comma usage.

D.
founded

Question

Which word or abbreviation in the sentence, if any, should be followed by a comma? 

Mr. Alex Jackson, CEO founded the company 10 years ago.
  
  A. 
  CEO   
 
  B. 
  Mr.   

  C. 
  There is no error in comma usage.   

  D. 
  founded

bobo-i-bo · Answer

A because the sentence does not make grammatical sense otherwise. If you left the comma out, then CEO would be the subject of the sentence which would make "Mr. Alex Jackson" out of place in the sentence.

kimbrown415 · Answer

A) CEO  the sentence does not make sense any other way

naate · Answer

yea i would say A  @rebecca1588