Albert Owns a Piece of Land Called Blackacre

Albert owns a piece of land called Blackacre.He has accepted Dawn's offer to buy it for $200 000.That agreement of purchase and sale is, however, conditional on Dawn's ability to sell Whiteacre, a property that she currently owns.Which of the following statements is most likely TRUE?

A) The parties' agreement is subject to a condition subsequent.
B) If Dawn changes her mind, she is fully entitled to avoid purchasing Blackacre simply by refusing to seek a purchaser for Whiteacre.
C) Albert can waive the condition and insist upon performance of the sale if Dawn is unable to find a purchaser for Whiteacre.
D) Although the contract is subject to a condition, Dawn must immediately make a good faith attempt to sell Whiteacre.
E) The existence of the condition means that the parties will not have a contract unless and until Dawn sells Whiteacre.