Intervene means when one get involved in sth or situation just to alter or change results of an action
B allusion because i got the same question
Answer: Dr. Livesey's
Explanation: He realizes that the oilcloth-wrapped papers in his pocket may be what the pirates sought, but he is reluctant to hand them over to the officer, Dance, who tries to take charge of the situation. Jim says he would prefer to show the papers to Dr. Livesey, and he sets off with Dance’s party for Livesey’s house.
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