Which of the Following Agreements Is Least Likely to Be

Which of the following agreements is least likely to be recognised by the courts as being legally binding? Please select all that apply.

A) A post-nuptial agreement to split marital assets evenly in the event of divorce.
B) An agreement to purchase and share a house together where it was necessary for both parties to dispose of their individual properties in order to afford the arrangement.
C) An agreement between family members involved in a lottery syndicate to split any winnings between them.
D) An agreement between spouses that one party should pay the other a monthly sum for maintenance.