49.In order to improve service quality of government organizations, evaluation on their policies and services has been carried out since 2000. (1) Last, I want to thank you again for your participation. (2) All the information will be used for research only and all private details will be strictly confidential. (3) On behalf of Marketing and Research Company, which is authorized to execute the evaluation of 2011, I welcome you all. (4) Your opinions are of vital importance! (A) 4231 (B) 3421 (C) 1324 (D) 2314