Astride entered into a contract withBild Ltd to construct a wall around the garden of a house she had just purchaseD、The wall was to be three metres high to block out a view of a rubbish tip. The wall was due to be finished in May andAstride entered into another contract withChris to landscape the garden starting on 1 June.Bild Ltd finished the wall on 25 May. However whenAstride came to examine it for the first time she found that it was only 2·50 metres high and that the rubbish tip was still visible from the top of her garden.On 1 June,Chris informedAstride that he was too busy to landscape her garden and that she would have to get someone else to do it. The only person available, however, will chargeAstride €500 more thanChris had agreed for doing the work.Required:Analyse the scenario from the perspective of the law of contract, advisingAstride: (a) Whether she can requireBild Ltd to reconstruct the garden wall in order to make it the agreed height, and if not, what alternative action is available to her. (5 marks)