Under the Sales Article of the UCC, when a written offer has been made without specifying a means of acceptance but providing that the offer will only remain open for ten days, which of the following statements represent(s) a valid acceptance of the offer?i. An acceptance sent by regular mail the day before the ten-day period expires that reaches the offeror on the eleventh day.ii. An acceptance faxed the day before the ten-day period expires that reaches the offeror on the eleventh day, due to a malfunction of the offeror's printer.a. I onlyb. II onlyc. Both I and IId. Neither I nor II.