A familiar conclusion seems irresistible : without an ability to protect their creations against theft, creators will be unable to earn an adequate living.
【正确答案】 A
【答案解析】解析：原文“A familiar conclusion seems irresistible：”中的划线词根据上下文可释义为“不可避免的，必然要发生的”，所以吻合旬意的单词只有选项A．inevitable(不可避免的，必然发生的)，故A为正确答案。