The retrieve function does not pass in the key value as a parameter because:
A. the key is never used to retrieve an element
B. the client must declare a struct object to hold the retrieved object, and it already has a key data member in it, so the client just passes the object in by reference with the
key value set
C. the key is already known by the retrieve function
D. the elements within a linked list are usually objects, and the retrieve function has no
way of comparing a key value to an object
B
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