The correct answer is: C. aggregate function.
An aggregate function is a mathematical operation that is performed on a set of values and returns a single value. For example, the SUM function returns the sum of all the values in a set, and the AVERAGE function returns the average of all the values in a set.
A format row is a row in a table that defines the formatting for the cells in the row. The formatting can include the font, font size, alignment, and borders for the cells.
A criteria row is a row in a table that defines the criteria that are used to filter the data in the table. The criteria can include the values that are used to filter the data, and the operators that are used to compare the values.
A format layout is a set of formatting options that are applied to a table. The formatting options can include the font, font size, alignment, and borders for the table.