Which two distinct configurations ensure that a user provides a valid postal code?

An application must validate postal codes for Canadian customers to match the pattern A1A 1A1, where A represents a letter, and 1 represents a number.

Which two distinct configurations ensure that a user provides a valid postal code? (Choose Two)
A . Configure a drop-down control to select the postal code based on the specified city and province.
B. Configure the postal code field as a text property with a required input field.
C. Configure a validate rule to test that the entered postal code conforms to the required pattern.
D. Configure an edit validate rule to test that the entered postal code conforms to the required partem.

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Answer: C, D