Question 1 (1 point)

Which regular expression will match a US 9-digit phone number? For example: 312-338-1234, (773) 764-3456, or 8779986789?

Question 1 options:

	\(?[0-9]{3}\)? [0-9]{3}-[0-9]{4}
	\d{3}-\d{3}-\d{4}
	[0-9-]{10,12}
	All the above

Question 2 (1 point)

Which of the following does the scanner emit tokens:

Question 2 options:

	Numerics
	Comments
	Operators
	Keywords
	Identifiers
	Whitespace