Interpolation search is an alternative vector or indexed list search engine. However, this method can be more efficient

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Interpolation search is an alternative vector or indexed list
search engine. However, this method can be more efficient than a
binary search or as slow as a sequential search. Tick the correct
alternative, referring to the determining factor for the efficiency
of the interpolation search:
A. The values must be of the same type.
B. A binary search must have been done before the interpolation
search.
C. The values must be ordered and evenly distributed.
D. Values must not be ordered.
E. Values must be in descending order.