Which expression should you use?

You need to configure that the mobile app meets the requirements for phone entries.

Which expression should you use?
A . PlainText
B . IsMatch
C . IsType
D . IsNumeric

Answer: A

Explanation:

When a pharmacy is added by using the mobile app, the phone number must be validated to be all digits.

Note: The IsNumeric function tests whether a value is numeric. Other kinds of values include Boolean, string, table, and record.

The return value is a Boolean true or false.

Reference: https://docs.microsoft.com/en-us/powerapps/maker/canvas-apps/functions/function-isnumeric