Veronica Corningstone mailed Ron Burgundy an offer with definite and certain terms and that was legal in all respects stating the offer was good for eight days. Four days later, she sent Ron a letter by certified mail (time stamped by the Postal Service at 12:30 p.m.) stating that the original offer was revoked. That afternoon around 1:30 p.m. Ron e-mailed Veronica accepting the offer. She then immediately phoned him to tell him that she had revoked the offer earlier that afternoon, and he would surely receive it in tomorrow's mail. Was the offer revoked by Veronica? Why or why not