I went to Sam's club today to buy engine oil and they had two options. One liter bottles and four liter bottles. I only care about the total quantity of engine oil I buy. Which one of the following represents my preferences? Let X stand for the quantity of one liter bottles and Y for the quantity of four liter bottles. Question 2 options: U(X,Y)=X+4Y U(X,Y)=min{X,4Y} U(X,Y)=min{4X,Y} U(X,Y)=4X+Y