Swami made an offer by mail to sell Georgina a widget for $100. Swami specified in the offer that he

wants a reply by e-mail. In this situation, which one of the following statements regarding the

acceptance of Swami's offer is correct?

Swami's offer can only be effectively accepted by the method specified in the offer.

Swami's offer may be effectively accepted using the same method of communication as was used

in making the offer.

Swami's offer may be accepted by post but the acceptance does not become effective until

received by the offeror.

Swami's offer is ineffective because it is unfair of Swami to impose conditions of acceptance on

Georgina.