Judith George makes an offer to sell a plot of land using a normal letter and states no authorized means by which the offeree, Helga Holmes must respond if she accepts. If Helga accepts the offer using a normal letter, which of the following is true? A. The acceptance is effective upon dispatch.

B. The acceptance is effective when it is received.

C. The offer is invalid because it fails to stipulate the means of acceptance.

D. The acceptance would be effective upon dispatch even if the means of acceptance is unreasonable.