Question: Mr. Joseph from the province Saskatchewan hired a courier to deliver his envelope to a land registry office located in the province of British Columbia. Unknown to the courier company, the envelope contained a document relating to land owned by Mr. Joseph. If delivered on time, the document would have enabled the plaintiff to complete the sale of its land. The courier company was unreasonable slow and delivered the document too late. As a result, Mr. Joseph was unable to perform the contract of sale, and it suffered a loss of $100,000.00. Mr. Joseph sued the courier company, but he failed because one of the elements of negligence does not apply. Please choose which one? A. Cost of damage. B. Injury suffered by the plaintiff. C. Standard of care D. Duty of care