Which expression should you insert into each function? (To answer, drag the appropriate regular expression statement to the correct location

You are validating user input by using JavaScript and regular expressions. A group of predefined regular
expressions will validate two input fields:
An email address in a function named validateEmail
A nine-digit number that allows optional hyphens after the second and fifth character in a function named
validateSSN
You need to use the correct expression to validate the input. Which expression should you insert into each function? (To answer, drag the appropriate regular expression statement to the correct location. Each regular expression statement may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.)

A.

Explanation: