What factor determines how value or surplus is distributed among different economic actors in a market?

A.0 The incomes they start with (i.e., their "initial endowments")

 B.0 How innovative they are (for example, their productivity or efficiency)

C.0 The particular allocation mechanism (for example, prices versus queues versus lotteries) 

D.0 The shape and slope of demand/supply curves E.0 All of the above