You have a file that contains an account number and email addresses for all customers. You must use the file to ensure that an email address is entered in the Customers table for each customer. You…

You have a file that contains an account number and email addresses for all customers. You must use the file to ensure that an email address is entered in the Customers table for each customer. You addhotspoy the account number and email address to the fields list in the Data manipulation dialog box. Which value should you select for the Action property?