this is a blaw question

Question 47 1 points Save Answ 22. If two sisters, Kate and Pippa, enter into a contract for one to give the other ande to work, and after a week Pippa the driver, breaches the agreement, what would the legal position be? (a) The presumption is that the parties intended to be legally bound to each other and therefore an action for breach of contract is possible (b) The contract would be void as the law of mistake would dictate that there could not have been a contract between them (c) The presumption is that the parties did not intend to be legally bound to each other because the agreement was made between siblings/family members (d) All of the above