In Early March, Mathilde Offered to Rent Her Cottage to Tom

In early March, Mathilde offered to rent her cottage to Tom for the first two weeks of July at a cost of $1200. Mathilde did not impose any restrictions on acceptance. Tom did not yet know when his vacation was scheduled, so he did not immediately respond to Mathilde's offer. Tom learned at the end of June that he was entitled to vacation during the first two weeks of July. He therefore arrived at the cottage on July 1st and told Mathilde for the first time that he was accepting her offer. Which of the following statements is most likely TRUE?

A) Tom does not have the right to stay at the cottage because he let Mathilde's offer lapse.
B) Tom has the right to stay at the cottage because he accepted Mathilde's offer by silence.
C) Tom has the right to stay at the cottage because he accepted Mathilde's offer by conduct.
D) Tom has the right to stay at the cottage because Mathilde should have known, as a reasonable person, that he would want to do so.
E) Tom has the right to stay at the cottage because Mathilde gave a firm offer.