On 20^th January, Jimmy wrote to Chris offering to sell his computer to Chris for RM5,000. In the letter Jimmy indicated that he will keep the offer open until 29^th January. Chris receives Jimmy's letter on the 22^nd of January. Later that day Stan, Jimmy's friend, telephoned Chris and informed him that Jimmy had sold the computer to him the day before for RM5,500. Chris immediately sent an e-mail to Jimmy accepting Jimmy's offer to buy his computer for RM5,000. Jimmy received Chris' acceptance on the same day.

Advise Chris on his legal claim, if any, against Jimmy for the computer.

Define contract by its common law definition and its legal definition under the Malaysian Contracts Act 1950; briefly introduce the scenario and the issues faced by the relevant parties.