The Costanzas signed a contract to sell land to Elaine. The contract specified that the sales transaction was to be completed in 90 days. At the end of the 90 days, Elaine requested an extension of time. The Costanzas refused to grant an extension and stated that the contract was terminated. Elaine claimed that the 90 day clause was not binding because the contract did not state that time was of the essence. If Elaine sues the Costanzas, explain who shall prevail