Eta Sends Morley a Contractual Offer Via Email from Her

Eta sends Morley a contractual offer via email from her Calgary office.The email contains a provision indicating that the offer expires at 5:00 pm,Calgary time.Morley replies to Eta's offer from his Vancouver office,indicating that he accepts her offer.Morley's email leaves his control at 4:52 pm (Vancouver time) and reaches an information system within Eta's control instantaneously.Eta waited in her office till 5:10 pm (Calgary time) ,but received nothing (because of the one-hour time difference between Vancouver and Calgary) .The next day,when Eta found Morley's email in her inbox (time stamped at 5:52 pm Calgary time) ,she phoned Morley to refuse the deal.According to the Uniform Electronic Commerce Act,which of the following is TRUE?

A) Eta and Morley have definitely concluded a binding agreement,which was formed at 5:52 pm Calgary time.
B) Eta and Morley have definitely concluded a binding agreement,which was formed at 4:52 pm Calgary time.
C) Eta's offer expired.
D) Morley accepted Eta's offer,but the contract did not come into effect until the next morning when Eta opened her email.
E) Once she opened her email it was too late for Eta to refuse the deal.