To simplify list processing, a header node is defined as a placeholder node at the beginning of
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Question:
To simplify list processing, a header node is defined as a placeholder node at the beginning of a list and a trailer node is defined as a placeholder node at the end of the list. When a list is empty, which statement is NOT correct?
a) the header and trailer reference to the same node
b) the header and trailer nodes point to different nodes
c) the header node points to the trailer node
d) the header and trailer nodes have null value
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