随着计算机技术的日益成熟和广为应用，管理幅度和管理层级的理论也发生着革命性的变化，不符合目前变化的是（）

A.中层管理功能正逐渐由计算机完成

B.组织管理幅度变宽

C.组织管理层级变少

D.组织日益由扁平化走向高耸型

E.信息传递加快

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)