Park used her digital recorder to record an offer she wished to make to Reape by mail. Her secretary typed the offer and placed it on Park’s desk for Park to review. Before the offer had been sent to Reape, Park called Reape, told her what she was doing, and stated that she would mail her the official offer to which Reape could respond. Instead of waiting for the offer to come in the mail, Reape immediately mailed an acceptance to Park. Was this acceptance valid?