a) Ghann insists that Builtcom was legally obliged to sell the tower crane to them and committed a breach of contract by selling to Southern Construction. Advise Builtcom as to the legal position concerning whether they have committed a breach of contract. b) How, if at all, would your answer differ if Buiitcom had requested in their email dated 17 June 2023 a payment of $1000 from Ghann in order to keep the offer open until 25 June 2023, and Ghann had paid this sum on ISJune 2023