Kathleen offers to buy Richard's home for $100,000 only if a licensed home inspector certifies that the home has no major structural damage, such as necessary repairs to the plumbing, or foundation. After inspecting the home, the inspector concludes that the home needs two knobs replaced on the kitchen cabinets. Kathleen must still buy the home. does not have to buy the home, but must buy another home of similar value from Richard. does not have to buy the home. must still buy the home, but may pay a lower price.