Business law Australia

In which scenario is it LEAST likely that the contracting party will be able to terminate their contract without penalty? Choose the SINGLE answer that best answers the question or best completes the sentence. Do NOT select multiple answers (ie, please IGNORE where it says to choose "at least one" correct answer - this is a computer bug that I cannot get rid of). A Leon, 16 years old, has agreed to buy a computer on sale from JB-LoFi Pty Ltd for $400 that he needs to complete his schoolwork. Betty, who is 15, was persuaded by a door-to-door salesperson to switch her mother's internet plan. The B salesperson would not give her any written documentation containing the terms and conditions of the new plan but told her that he would not leave until she signed up. Linus, 14 years old, hired Eric to build a play fort for him. Linus decides that he no longer wants the fort so he C tells Eric not to build the fort. Eric has not yet spent any money purchasing the materials that would have been used to build it. Florian agrees verbally to sell his shares in Spacebook Ltd to Matilda for $1000. Florian decides that he no longer wants to go ahead with the sale. E Meiling, who does not read English, signs a written English-language contract to buy a car. The written contract contains worse terms than what Melling and the seller had orally agreed to, and the seller knows that Meiling does not read English