You Are Helping Code One of Your Professor's Data

You are helping code one of your professor's data. You are coding occupation and notice that there is no code for a respondent's indicated occupation. Which of the following statements would be correct in relating the problem to the professor?

A) The coding scheme for occupation is not mutually exclusive.
B) The lack of a code for this particular occupation signals a mismatch between the data and the coding scheme.
C) The coding scheme for occupation is exhaustive.
D) The coding scheme is not a good scheme.
E) The lack of a code for this particular occupation means that the response should be thrown out.