Case Study Company A made an offer for a farm product to Company B stating :" Packing in sound bags. Within the validity, Company B required Refer to your telex first accepted, packing in new bags. On receiving the reply, Company A began to purchase the goods for export. Days later, as market price of the commodity was falling. Company B wrote to Company A No contract is entered between us, as you failed to confirm our changing of the packing requirement." Company A argued that Company B's acceptance was effective and the contract was established then. QUESTION: (1) What is your opinion? Give the reasons to support your opinion. (2) How to prevent such dispute