Which relationship line to use in a UML class diagram?

In a UML class diagram I want to show the relationship between two classes where the second class is the type of a class variable in the first.

I've looked here but am still unsure which relationship I should be using.

I think it may be the Dependency relationship but I am unsure.

Which should I be using?


It sounds like a composition(has a) but would need to hear more about your diagram.

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