Duplo owns Down Home Auto, a car rental business. Rufus was Duplo's store manager. Carol rents a vehicle from Rufus for two months, paying $300 per month. After a month of rental, Carol notifies Rufus that she wants to give her friend Carla the vehicle, and Carla will pay the rent. Rufus agreed. Carla attempted to pay Down Home Auto the rental fee. Duplo angry rejects her payment, saying he never authorized her to rent the vehicle. Duplo then demands Carol to pay her rent. She refuses, citing that she no longer owns the vehicle. a. Is Carol responsible for paying for the second month's rent to Down Home Auto? Why or why not? b. What if both Carol and Carla refuses to pay second month's rent? What are Duplo's remedies? Please list as many as possible