Consider a hash table of size seven, with starting index zero, and a hash function $(3x + 4)\mod 7$. Assuming the hash table is initially empty, which of the following is the contents of the table when the sequence $1, 3, 8, 10$ is inserted into the table using closed hashing? Note that − denotes an empty location in the table.
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$8$, −, −, −, −, −, $10$
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$1, 8, 10$, −, −, −, $3$
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$1$, −, −, −, −, −, $3$
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$1, 10, 8$, −, −, −,$ 3$