Consider an extensible hash table that uses 4-bit hash keys and stores two records per bucket. Simulate the insertion, into an initially empty hash table, of records with (hash values of) keys 1111, 1110, 1101,..., 0001, 0000, in that order. Which combination of i (the number of bits used to index the bucket array) and a set of of keys belong to one bucket at some time during the sequence of insertions? Group of answer choices i​ ​=​ ​1;​ ​1110​ ​only. i​ ​=​ ​3;​ ​0101​ ​only.​ i​ ​=​ ​2;​ ​1111​ ​only.​ ​i​ ​=​ ​3;​ ​1000​ ​only.

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