## Answer & Solution

Answer:** Option A**

Solution:

The

`COUNT`

function in SQL is used to return the number of values within a specified column. It counts the total number of rows in a result-set or the number of non-NULL values in a specific column. Here's an explanation of each option:

Option A:

`values.`

This is the correct answer. The

`COUNT`

function counts the total number of values (or rows) in a result-set or a specific column.

Option B:

`distinct values.`

The

`COUNT`

function can also be used with the

`DISTINCT`

keyword to count the number of distinct (unique) values in a column. However, this is not the primary function of the

`COUNT`

function.

Option C:

`groups.`

The

`COUNT`

function is not used to count groups. It is primarily used for counting values or rows.

Option D:

`columns.`

The

`COUNT`

function does not count columns. It counts the number of values or rows.

So, the correct answer is

`Option A: values.`

.