Elimination approach:
Statement (C), "organic farmers are dedicated in cultivation practices", describes a personal attitude or intent, it is subjective and cannot itself be verified or audited, so it does not function as a basis for certification. In contrast, (A) third-party monitoring is the actual verification mechanism, (B) compliance with NPOP guidelines is the technical standard being certified against, and (D) growing market potential is the practical reason certification is sought commercially. Because (C) fails the objective, certifiable-reason test while (A), (B) and (D) all pass it, the correct combination excludes (C).