Which of the Following Is True Regarding Fred's Door-To-Door Solicitation

Which of the following is true regarding Fred's door-to-door solicitation and his practice of informing customers that there is no backing out of contracts entered into for funeral services?

A) There is no problem with Fred's actions so long as he truly gives specific notice that he will not agree to any cancellations.
B) Fred must give customers at least 24 hours in which to cancel such a contract, but that is only because funeral services are involved.
C) There is no problem with Fred's actions even if he does not give specific notice that he will not agree to any cancellations.
D) Because door-to-door sales are involved, Fred must give consumers 24 hours in which to cancel.
E) Because door-to-door sales are involved, consumers must have three days in which to cancel purchases.