Which of the following is not a discharge by mutual consent?

Multiple Choice

• Stanley and Jack entered into an agreement where Stanley was to paint a mural on a wall at Jack's mansion for $50,000. Stanley later went to Jack and asked if he could paint a portrait of Jack and his wife instead. Jack agreed.
• Tiger was hired by Richville Country Club to give a golf clinic for $50,000. Tiger then decided to play an exhibition in Bahrain at the same time the clinic was scheduled. Tiger asked his friend Phil if he could fill in for him at the clinic and the country club agreed.
• Janelle was suing Mikkaela for breach of contract for $100,000. They reached an agreement for Mikkaela to pay $20,000 to settle all claims.
• Andrew signed a two-year lease of space in a mall to sell exotic animals, the commercial landlord knew of his intentions. After one year, Congress passed a law outlawing the sales of exotic animals in the U.S. Andrew seeks to terminate the lease.