the case study below using the law of contract principles in the answer booklet provided. Carla has decided to sell her 2022 Toyota Corola and her VW Motor van On July 10. She wrote to John offering to sell her car for $3.5M. The same day she also wrote to Margie informing her that she was seling her van for $3.5M. They were both to let her know by July 30, by post if they were interested. Marge on receiving the leter,responded by posting a letter on July 15 "stating that she was willing to buy the car at the stated price of $3.5M. The letter posted by Margie did not reach Carol. John also received his letter on July 15th and immediately responds by phone informing her that he is willing to pay $2.5mM for the van. Carol told him no. The next day he calls and agrees to pay $3.5M but Carol told him that she was no longer selling the van. John is very upset and tells her that she just bought a law suit. Carol, on the 20th July decided ot sell the van to Simon for $4million. Simon decided to make the payment with 100lbs of cocaine and $2million cash. Carol agreed and Simon paid the $2million cash but Carol is still waiting for the cocaine, as Simon has not handed this over.Margie has come for the car on July 15 with the cheque for the $3.5M but Carol told her on that day that she is no longer selling the car. Maggie is unhappy and plans to sue her. Carol told her sister Tamara who she lives with, that she would give her $50,000.00 to assist with household expenses, however, because of a previous failed investment, she had no money to give to her. Tamara is upset and is contemplating suing her. Carol has come to you for advice. a)Identify the issues arising b) Discuss the relevant legal principles and cases that support these principles. c) Apply these principles to the case study d) Advise Carol