The king is said to _________ by the spider weaving its web in the cave where he was hiding and defeated his enemy at last.
A.be encouragedB.being encouragedC.have been encouragedD.have encouraged在线课程C
解析：
本题考查动词不定式的用法。根据语境by the spider要用被动形式；不定式动作在谓语动词的动作之前发生，所以选C项。