Please answer all four of the questions below given case examples and citing statutes where necessary: 1. With reference to the case of Carlill v Carbolic Smoke Ball Company, explain the essential ingredients for a valid contract and why this case was considered a contract and not an invitation to treat. (25 marks) 2. With case examples explain what is meant by the consideration of a contract (25 marks) 3. Give a description of the case Donoghue v Stephenson and what is meant by the ‘neighbour principle’ (25 marks) 4. How many tests are used to determine whether someone is employed or selfemployed? Give a brief outline of these tests (25 marks) Your assignment needs to be word processed, double spaced in an Arial 12 font. Your assignment must contain an introduction, conclusion and appropriate subheadings where appropriate and referenced using the Harvard referencing system. Your total submission including references in the main body of the work, but excluding your Reference List/Bibliography should not exceed 2,000 words