Which of the following field properties enforces the use of parentheses when keying an area code? A. Field Size B. Format C. Input Mask D. Validation Rule

The correct answer is C. Input Mask.

An input mask is a field property that defines how data is entered into a field. It can be used to enforce certain formatting rules, such as requiring that a phone number be entered with parentheses around the area code.

The other options are incorrect because:

• Field Size is a field property that defines the maximum number of characters that can be stored in a field.
• Format is a field property that defines how data is displayed in a field.
• Validation Rule is a field property that defines rules that must be met before data can be entered into a field.

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