What does the underlined word "secured" mean in Paragraph six?

A.sought B.gained C.made D.bought
secured可以用A,B,C,D哪个词替代 ,当获得讲,后文有get
文章内容:If you haven't already secured an internship within your chosen field,do so now.Take any internship;forget about about being paid.You are after two things:experience in your field and the opportunty to check out/hook out onto a possible employee.Your connections,and your connetions' connections,will be the hot tichet to get you in the door for job interviews.

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