Anthony offers to sell a computer to Salvador for $$900$ if Salvador replies by e$-$mail only, sent no later than noon on Saturday. On Saturday, Salvador is unable to access his e$-$mail, so he mails an acceptance at the post office before noon. Which of the following is true of the situation?

A legal contract exists since Salvador's acceptance was sent by noon on Saturday.

A legal contract does not exist since the mode of acceptance specified in the offer was not used.

Anthony is legally bound to the contract since Salvador's e$-$mail malfunction was no fault of his own.

No contract exists since Salvador's acceptance is not effective until reviewed.