When using Excel for simulation, it is important to freeze the random numbers used in order to compare the effectiveness of different policies. To do this, you must select the cells holding the random numbers with the mouse, click Edit/Copy at the top of the spreadsheet, and:

A. click Edit/Paste Special and select the Values option.

B .move to a different section of the spreadsheet, then click Edit/Paste to freeze the cells.

C .click Edit/Paste Special and select the Formulas option.

D .click Edit/Paste to freeze the cells.