Michele Is Desperate to Sell Her Home and Has Entered

Michele is desperate to sell her home and has entered into an agreement to sell to a known drug dealer who has made her an offer she can't refuse. He informs her of his profession, that he is purchasing the house for his boss whose identity he cannot disclose, but that he is a major drug lord in Columbia. She goes through with the sale anyway. The dealer turns out to be an undercover FBI agent. Michele is charged with conspiracy to launder money. She believes this charge will not stick because she did not enter into an agreement with another legitimate party. Is she correct?

A) Yes, conspiracies must be bilateral.
B) No, unilateral conspiracies may exist with undercover agents providing the single individual agreed to enter into a conspiracy.
C) Yes, unilateral conspiracies may not exist with undercover agents providing a single individual agreed to enter into a conspiracy.
D) No, conspiracies regularly target individuals who have not actually entered into any agreement.