It is used to calculate and restructure data for easier analysis of your data. It calculates the sum, A. Parameter B. Select C. crosstab D. Append

The correct answer is C. crosstab.

A crosstab is a data analysis tool that allows you to summarize data in a table format. It is used to calculate and restructure data for easier analysis of your data. It calculates the sum, average, count, and other statistics for each row and column in the table.

The other options are incorrect because:

• Parameter is a value that is used to control the execution of a query.
• Select is a command that is used to retrieve data from a database.
• Append is a command that is used to add data to an existing table.

I hope this helps! Let me know if you have any other questions.