You are developing a customer information application for a pay television company. The customer's home telephone number is used as the account number for the customer. Clerks must be able to update…

You are developing a customer information application for a pay television company. The customer's home telephone number is used as the account number for the customer. Clerks must be able to update the telephone number in case of changes or data entry errors. A data entry clerk will typically open several forms from the Customers form that are synchronized with the currently selected customer using a global variable containing the telephone number. Although you also need to modify the other forms, what two triggers should you code in the Customers form to keep the forms synchronized in case the data entry clerk updates the telephone number or selects a different customer? (Choose two.)