单选题 Book publishing has long been ______ profession, partly because, for younger editors, the best way to win a raise or a promotion was to move on to another publishing house.

(A) an innovative
(B) a prestigious
(C) an itinerant
(D) a rewarding
(E) an insular

【正确答案】 C

【答案解析】The key phrase here is "move on." If editors have to travel from firm to firm to succeed in their field, then publishing can be classified as an itinerant profession, a profession marked by traveling.