Prove that a graph G is regular

All of the following commonly-used number format have buttons on the Ribbon EXCEPT ________

A) Accounting B) Fraction C) Percent D) Comma

Which of the following is NOT an editing restriction that you can set in Word?

A) Preventing users from making changes to a letterhead template. B) Preventing users from formatting the document. C) Restricting data entry to fields. D) Restricting data entry to unprotected areas of a form.