Final answer:
All of the given options could potentially disqualify an applicant from receiving a license except for lack of experience in unrelated fields.
Step-by-step explanation:
All of the given options could potentially disqualify an applicant from receiving a license except for option C) Lack of experience in unrelated fields.
Option A) Past criminal convictions related to fraud could disqualify an applicant as it demonstrates a lack of trustworthiness. Option B) Unresolved complaints from previous clients could show a pattern of poor service or misconduct. Option D) Violation of real estate ethics and standards indicates a breach of professional conduct.
However, option C) Lack of experience in unrelated fields may not be a disqualifying factor as long as the applicant meets the necessary qualifications and requirements specific to the license being applied for.