The credibility gap is the result of a deliberate policy of artificial ( ) of official news, from a wider range of publications and an expansion of newspapers.

A. manipulation

B. reproduction

C. circulation

D. Penetration

【答案】A。本题考查词义辨析。民众对政府的不信任是官方在一系列报纸和出版物上蓄意假造新闻政策的结果。manipulation“操纵，操控”;reproduction“繁殖，复制”;circulation“循环，环流”;penetration“渗透，突破”。根据句义，本题选A。