The point you are raising is not . . . . . . . . to the subject.

proper
fit
required
pertinent

The correct answer is D. pertinent.

The other options are not correct because:

  • A. proper: The point being raised may be proper, but it is not pertinent to the subject.
  • B. fit: The point being raised may be fit, but it is not pertinent to the subject.
  • C. required: The point being raised may be required, but it is not pertinent to the subject.

Pertinent means “having a direct and significant bearing on the matter at hand.” In this case, the point being raised does not have a direct and significant bearing on the subject, so it is not pertinent.