You Are Going to Dinner with Three Friends,one Who

You are going to dinner with three friends,one who likes steak,another who is a wine connoisseur,and the third who is a vegetarian (which is assumed to be the least expensive) .Which is true?

A) How the bill is shared has no effect on what and how much people choose to eat
B) Equal sharing of the bill ensures that people order a similar dollar amount of food
C) The wine-drinker will argue for equal shares,and will drink as fast (and/or as much) as possible
D) The vegetarian will be better off with equal shares
E) None of the choices are correct