Nhu had two laptop computers for sale.Nhu

问题：

Nhu had two laptop computers for sale.Nhu wrote to Huong, offering one laptop computer for 6 million dong. Huong accepted the offer but after posting the acceptance changed her mind and sent another letter stating that she did not want the laptop. Both letters arrived at Nhu’s offi ce in the same delivery.Nhu despatched the laptop to Huong with an invoice for 6 million dong.Nhu wrote to Giang offering the second laptop computer for 6 million dong. Giang replied stating that he was only prepared to offer Nhu 5 million dong, which Nhu refused.Two weeks later, Giang contacted Nhu again, accepting Nhu’s original offer of 6 million dong. Nhu had already sold the computer to another person.Required:Explain whether Nhu has entered into legally binding contracts with Huong and Giang. (10 marks)