Whether it is the Accord of Satisfaction, I am sure it is covenant not to sue.

Electrician Derek rewired Kechen's office, but his negligent work caused a fire that damaged Kechen's office. Kechen wants Derek to pay for the damage, but he is not sure how much the repairs will cost. Which of the following settlement options would permit Derek and Kechen to enter into an agreement today (before the parties know exactly how much the repairs will actually cost) that will allow Kechen to ensure he will ultimately recover the full cost of repairs in exchange for his promise not to sue Derek for negligence? (Choose the most correct answer.) Release; Accord and Satisfaction AND Covenant not to sue; Accord and Satisfaction; Covenant not to Sue