Which of the following statements about trees is false?
A. Trees have their origins in the work of mathematician Gustav Kirchhoff.
B. Tree applications range from artificial intelligence systems to efficient search algorithms for large, dynamic lists.
C. The entry node in a tree is known as a leaf.
D. Binary trees are implemented with two pointers, one to the left subtree and one to the right subtree.
E. A tree is a hierarchical data structure.
Answer: C
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A ____ contains fields of information about a single entity in the database.
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