Decide when and where the contract was concluded in each of the following situations. Briefly motivate each respective answer. 3.1 On Monday, the 7th of March 2022 Joe made a verbal offer to sell his Commercial Law 1A study guide to Pete for N$ 20. The offer was made during the Commercial Law lecture at NUST, Windhoek. On Friday, the 11th of March 2022, Pete phoned to accept the offer. Pete phoned from his home in Windhoek and Joe received the call on his cell phone on the plane on his way to London, at that stage in the process of departing from Johannesburg International Airport. (3 marks) 3.2 Suppose Joe stipulated that acceptance must be made on or before Thursday, the 10th of March 2022 and reconsider your answer in 3.1 above. (2 marks) 3.3 The parties agreed that Pete could accept by mail. The letter of acceptance is posted on the 9th of March 2022 in Windhoek. Joe received the letter on the 10th of March 2022 in Windhoek, but only read it on the 12th of March 2022 in Johannesburg. (3 marks) 3.4 Suppose the parties agreed that the agreement would only be binding once it is reduced to writing and signed by the respective parties. Joe drafts and signs the agreement in Windhoek on 9 March 2022 and Pete signs it on 11 March 2022 while he is visiting his sick grandmother in Okahandja. (2 marks)