Question: If a column has low selectivity, this means: a. The column contains many distinct values. b. The column contains a small number of distinct values.

If a column has low selectivity, this means:
a. The column contains many distinct values.
b. The column contains a small number of distinct values.
c. A WHERE clause is always used in a query on the column.
d. The selectivity of a column can’t be determined.

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